Though your metabolism IS constantly at work, it does slow down later in the day, especially if you are just dieting and not exercising. When you exercise your heart rate and...
The "good fat/bad fat" you've heard about refers to fat's potential to cause disease. All fats have the same amount of calories, but they vary in their chemical compositions and effects on health. Fats are made of chains of carbon and hydrogen atoms. The saturation refers to whether all the available spaces on the carbon chain are bonded to hydrogen atoms, or if there are any hydrogen atoms missing. The three forms of fat found in nature are:
These fats have all of their carbon atoms filled (saturated) with hydrogen. Saturated fat is primarily found in high-fat cuts of meat, poultry with the skin, whole and 2 percent dairy products, butter, cheese, and tropical oils: coconut, palm, and palm kernel. Our body needs a small amount (about 20 grams) of saturated fat each day, but the typical American diet usually exceeds that amount. Too much saturated fat may cause a person's bad cholesterol (LDL) to rise and may also increase the risk of developing certain types of cancer. You can look for the amount of saturated fats in a serving of food on the nutrition label, under the heading "Saturated Fat" below the larger heading of "Total Fat."
These fats have one space missing a hydrogen atom, instead containing a double bond between two adjacent carbon atoms. Monounsaturated fat is found in olive oil, canola oil, peanut oil, and in most nuts and nut butters. This type of fat does not cause cholesterol to increase. When a person substitutes monounsaturated fat for saturated fat, it helps to lower the bad cholesterol and protects the good cholesterol (HDL) from going down. The amount of monosaturated fats (and polyunsaturated fats, see below) is not listed separately on the food label, but it can be calculated by subtracting the saturated and trans fats (see below) from the total fat.
These fats have more than one hydrogen atom missing in the carbon chain and therefore contain more than one double bond. The two major categories of polyunsaturated fats are Omega-3 and Omega-6 fatty acids. Omega-3 means there is a double bond in the third space from the end of the carbon chain. These fats are extremely healthful in that they protect against sudden death from heart attack. They can also help people lower their triglycerides. Omega-3s are used by the body to produce hormone-like substances with anti-inflammatory effects. The best sources of Omega-3s are fatty fish, such as salmon, sardines, mackerel, herring, and rainbow trout, among others. Canola oil, walnuts, and flaxseed also contain some Omega-3s.
Omega-6 fats have a double bond in the sixth space from the end of the carbon chain. These fats are found in oils such as corn, soybean, cottonseed, sunflower, and safflower. Omega-6 fatty acids are used in hormone-like substances that promote inflammation. Replacing saturated fats with Omega-6 fats may reduce levels of total, bad, and good cholesterol. Many health experts suggest that the ratio of Omega-6 to Omega-3 fatty acids should be 4:1 for optimal health. (Most Americans get 14 - 20:1 — a lot more than needed!) These fats are not listed separately on the food label.
The other type of fat that is found in food, but isn't natural, is:
Hydrogenated Fats (also known as Trans Fats)
These are manufactured by adding hydrogen to a polyunsaturated fat, making it solid at room temperature. However, instead of having the qualities of a polyunsaturated fat, it takes on some of the traits of a saturated fat. In the past, trans fats were widely used in foods as a replacement for saturated fats. Then it was discovered that trans fat was even worse than saturated fat in terms of its effects on health. In addition to raising LDL cholesterol, as saturated fat does, it also decreases the level of HDL cholesterol.
Many companies have found ways to eliminate trans fats from their products and all companies are now required to list the amount of trans fats on the nutrition label. Be aware that products containing half a gram or less of trans fat per serving are allowed to report zero grams of trans fat on the nutrition label. The best way to check for trans fat is to read the ingredients label; if you see the words "partially hydrogenated" or "hydrogenated" in front the word oil, the food probably has a small amount of trans fat. This doesn't mean you shouldn't eat the food, but you should limit the amount you eat — a little can add up to a lot. Some foods contain small amounts of naturally-occurring trans fats, but these fats, unlike man-made trans fats, probably do not increase the risk of heart disease and other conditions. Moreover, some manufacturers are now replacing trans fat with saturated fats, so be sure to check the nutrition label to keep your total intake of unhealthy fats in check.
Although too much can have negative results, fats are certainly required for good health. Here are some of the positives — fats:
- carry flavors
- impart desirable textures — smooth, creamy, and crispy, to name a few
- give us a sense of fullness and satisfy hunger
- are needed to absorb and store certain vitamins and plant chemicals
- can contribute to a person's enjoyment of food
- are essential building blocks in cell production, maintenance, and repair
- provide and store energy for the body's use
Bear in mind, though, that the calories from fat can add up fast since they are more concentrated in fat than in protein or carbohydrate. Also, as mentioned above, consuming too much saturated and trans fat may result in negative health consequences in some people. The secret is not to stay to one extreme or another; try to be flexible in your fat intake. What does that mean? Balance your meals and snacks. If you find you have a high fat meal (especially high in saturated fat), make the next one lower in fat. Or, if you choose a higher fat food, complement it with a lower fat one. We don't have to live an "all or nothing" philosophy when it comes to fat.
Since most people don't have access to farm fresh food all of the time, many people rely on processed items as part of their daily sustenance. Food additives help maintain the freshness and shelf life of such food products because without them, they would spoil quickly due to exposure to air, moisture, bacteria, or mold. Either natural or synthetic substances may be added to avoid or delay these problems.
Food additives may be used in a variety of ways, including:
- (1) To maintain consistency or texture — to sustain smoothness or prevent the food from separating, caking, or clumping.
- (2) To improve or retain nutritional value: Enrichment replaces nutrients lost in processing — this occurs with grains, as some vitamins and minerals are lost in the milling process. Fortification adds a nutrient that wasn't there before and may be lacking in many people's diets. Iodized salt is an example. This has proven useful in preventing goiter, a thyroid disease caused by a deficiency in iodine. Enriched and fortified foods are labeled as such.
- (3) To delay spoilage
- (4) To enhance flavor, texture, or color
Preservatives are centuries old. Since ancient times, salt has been used to cure meats and fish, and sugar has been added to fruits to conserve them. Herbs, spices, and vinegar have also served as preservatives. Today, the U.S. Food and Drug Administration (FDA) regulates food additives and preservatives. Granted, mistakes have been made, which have resulted in taking some food additives and preservatives off the market. That is because at the time of approval, prevailing testing methods proved the substances as safe. As science continued to evolve and testing methods improved, changes were made. Technology has also assisted in the approval process as it has become more sophisticated over the years as well. In addition, Food Additive Laws are reviewed and revised according to advancing scientific research.
Food additives in and of themselves don't connote something "bad." For example, ascorbic acid refers to vitamin C and alpha-tocopherol is actually vitamin E. Some uses and examples of food additives are:
- Anti-Oxidants: prevent spoilage, flavor changes, and loss of color caused by exposure to air. Vitamin C and Vitamin E are used as antioxidants.
- Emulsifiers: used to keep water and oil mixed together. Lecithin is one example used in margarine, baked goods, and ice cream. Mono- and diglycerides are another found in similar foods and peanut butter. Polysorbate 60 and 80 are used in coffee lighteners and artificial whipped cream.
- Thickening Agents: absorb water in foods and keep the mixture of oil, water, acids, and solids blended properly. Alginate is derived from seaweed and is used to maintain the texture in ice cream, cheese, and yogurt. Casein, a milk protein, is used in ice cream, sherbet, and coffee creamers.
For a complete guide to information about food additives, including the approval process, click onto the FDA web site.
Another useful link describing many food additives and their uses can be found on the Center for Science in the Public Interest web site.
Hope this provides you with lots of useful information,
Dear Out to lunch bunch,
Restaurants, fast food joints, and delis are often convenient for a quick meal and provide a welcome opportunity to socialize. However, there are a couple of ways in which eating out may be less than favorable for your health. The specific effects will vary depending on the type of restaurants and dishes you choose, which is why educating yourself is a great place to start. Here are some reasons why eating out can make it hard to maintain a healthy and balanced diet:
- Calorie overload: While restaurants and fast food joints have a knack for making tasty and unique foods, the dishes often have more calories than meals you’d make at home. Researchers studying chain restaurants found that the average entrée had 674 calories, the average side had 260 calories, the average beverage had 419 calories, and the average dessert had 429 calories. A bit of math reveals that a single meal out could add up to over 1,000 calories! Depending upon your specific caloric needs, you could be knocking out half of your recommended daily caloric intake with a single meal. Fortunately, many restaurants make calorie information available, which can be a useful resource if you’re eating out often.
- Mega portions: One of the reasons restaurant food is often higher in calories is because of the large portions. Have you ever felt like your eyes were bigger than your stomach? You’re not alone. It’s been well established that when people are presented with large portions, many will eat far beyond the point of feeling full. Large restaurant portions can make it easy for you to fall into overeating without even realizing it.
- Scads of salt: The sodium content of food in eating establishments is often sky high: 1,848 mg per 1000 calories in a fast food joint, and 2,090 mg per 1,000 calories at a sit-down restaurant. Those numbers are creeping up on the recommended daily limit of 2300 mg per day, so looking for dishes containing lower amounts of sodium can help you keep your levels in check.
The type of restaurants you frequent also matters as far as health risks are concerned. For those who are into the burgers-and-fries joints, research shows an increased risk of obesity and type 2 diabetes, as well as an overall lowered intake of key nutrients. For those who prefer fast-food restaurants that primarily serve sandwiches and subs, there tends to be increased intake of fat and sodium. (However, weight gain has not been associated with consumption of foods from these establishments). Finally, for those heading off to full-service restaurants, studies show that even though you’re probably consuming adequate amounts of fruits and veggies, you’re exposed to high sodium content, which increases your risk of developing high blood pressure.
If you’re ever interested in trying your hand in the kitchen to avoid some of these health risks of eating out, you can read No time to cook or visit ChooseMyPlate.gov for some ideas on quick and nutritionally-balanced meals you can make. Additionally, here are a couple of ideas on ways to make more healthful choices when you do go out:
- Order water, low-fat or fat-free milk, or unsweetened tea to drink in order to avoid beverages with lots of added sugar.
- Ask for whole-wheat bread for sandwiches.
- Start with a salad packed with veggies to help control hunger and feel satisfied sooner.
- Ask for dressings to be served on the side so that you can have control over how much you use, add little or no butter to your food, and avoid dishes with creamy sauces or gravies.
- Choose main dishes with lots of veggies.
- Order steamed, grilled, or broiled dishes instead of those that are fried or sautéed.
- At buffet restaurants, order an item from the menu instead of going for the all-you-can-eat option.
- Choose fruits for dessert.
- If the portions at a restaurant are larger than you want, split it with a friend, order an appetizer-sized portion, take leftovers home, and remember that you don’t have to “clean your plate.”
- Pack a healthy snack for yourself (e.g., fresh fruit, veggies, or a handful of nuts) if you’re going to be out and about to avoid stopping to buy an unhealthy snack.
List adapted from choosemyplate.gov.
Finally, whether you choose to eat out regularly or just for the occasional treat, a strategy known as “mindful eating” might be a handy tool. Mindful eating involves actively making yourself aware of why and how you are consuming food and the way your body feels when eating. Are you consciously aware of when you’ve eaten your fill, or is eating more of an automatic reflex? Asking yourself questions like this may help you make more balanced menu choices and avoid the some of negative effects of eating out, although further research on mindful eating is still emerging.
There’s certainly a lot of information to digest on the effects of eating out! But whether you’re eating on the run or whipping up a meal at home, maintaining a balanced diet with plenty of fruits, vegetables, and whole grains is key. As they say, everything in moderation!
Dear Student & Parent,
Bravo to eating breakfast! It's fairly well known as this point that a healthy breakfast is a great way to start each day — especially when it's made from scratch. Taking into consideration that, just sometimes, younger people are a little picky about what they'll eat, not to mention the energy it can take a groggy chef to whip up something in the A.M., here are a few easy, interesting, and nutritious breakfast recipes:
Creamy Apple-Cinnamon Oatmeal (makes two servings):
2 c. skim milk
1 c. rolled oats
1 T. Brown sugar
1 T. Maple syrup
1 apple — peeled, cored, and chopped into cubes
- In a medium pot, heat the milk over medium heat, almost to a boil.
- Add the oatmeal, reduce the heat to low, and cook for about 5 minutes, or until all of the milk is soaked up by the oatmeal.
- Add the brown sugar, maple syrup, and apple pieces. Stir well and serve.
Berry Parfaits (makes two servings):
2 containers of yogurt (vanilla, lemon, or peach)
2 c. mixed berries: strawberries, raspberries, blueberries, and/or blackberries
1 c. low fat granola
- In 2 glasses or plastic cups, add a layer of yogurt to the bottom. Cover with a layer of berries, and then sprinkle on a layer of granola.
- Repeat the layers until the glasses or cups are full, ending with a sprinkle of granola.
Egg Scramblers (one serving):
1 or 2 eggs
1 toasted whole wheat pita or toasted English muffin
Optional item(s): mushrooms, peppers, grated cheese, chopped tomatoes, onions, salsa, or whatever else you like!
- Crack eggs into a glass measuring cup and beat well. Mix in any other ingredients you like.
- Cover tightly with a microwave safe plastic wrap.
- Microwave at 70 percent: 1 minute for 1 egg; 1-½ minutes for 2 eggs — slightly longer if you add other ingredients, or if you like your eggs more well done.
- Spoon into a pita, or onto a toasted English muffin.
- Crack eggs into a bowl and beat well. Mix in any other ingredients you like.
- Pour egg mixture into a non-stick pan. Cook over low heat, stirring occasionally, until eggs are cooked through, not runny.
- Spoon into a pita or onto a toasted English muffin.
Banana Smoothie (makes one serving):
1 banana cut into 1-inch chunks (works great if already frozen)
½ c. yogurt
½ c. milk or soy milk
2 T. honey or jam
¼ t. vanilla extract
- Put all of the ingredients into a blender. Mix until all of the fruit is pureed.
- Pour into a glass, and drink immediately.
You can freeze this beverage overnight, then toss it into a blender, and pour it back in the plastic cup you froze it in. If you run out of time in the morning, you can bring your smoothie with you on the way to school.
Regardless of what you make, consider involving your breakfast companion in both the decision process and making the breakfast. This way you can both enjoy some time together and a nutrient-filled morning. Eat up!
You're right in thinking that some foods could help improve health or protect against disease. Some of these disease-fighting substances in food are vitamins and minerals, but another diverse group of plant chemicals are called phytochemicals. Phytochemicals, many of which are antioxidants, impart distinct flavors, aromas, and pigments to foods. For example, one enormous class of antioxidants, flavonoids, includes a group called allyl sulfides, which are found in garlic, onions, and shallots. It's believed that allyl sulfides may help produce a detoxification enzyme that protects against carcinogens. Other antioxidants are detectable by their colors — vividly colored fruits and veggies are rich sources of beneficial plant chemicals. For example, anthocyanins are antioxidants that lend the deep red, blue, and purple hues to raspberries, blueberries, eggplant, and red cabbage.
So how do antioxidants work? They are believed to protect cells from "free radicals," which are harmful oxygen molecules. Free radicals may cause damage to cells, possibly resulting in cancer. Smoking, air pollution, infection, and excessive sunlight can all increase production of free radicals, although they are also formed from normal bodily functions. Antioxidants may help prevent the formation of carcinogens (cancer causing substances), block the actions of carcinogens, and/or suppress cancer development. Most of these actions have yet to be proven in humans; however, foods containing antioxidants (mostly plants) contain many other healthy components.
The following table lists various classes of antioxidants and other phytochemicals, some of their rich food sources, and how they are believed to work:
citrus fruits, tomatoes, peppers, broccoli, leafy vegetables, strawberries, potatoes
Inhibits nitrosamine formation, a potentially dangerous carcinogen
apricots, papaya, sweet potatoes, tomatoes, mangoes, carrots, pumpkin, red peppers, spinach, corn, cantaloupe
Numerous anti-cancer functions
May detoxify cancer promoters
cooked tomato products, watermelon, pink grapefruit
A class of carotenoids that's protective against prostate and possibly other cancers
blueberries, strawberries, raspberries, blackberries, grapes, cherries, red peppers, eggplant, red cabbage
Antioxidant cell protection; may help prevent binding of carcinogens to DNA
garlic, onions, shallots, leeks, chives, scallions
Various anti-carcinogen functions
parsley, carrots, broccoli, cabbage, cucumbers, squash, eggplant, peppers, mint, basil, citrus fruits
Aid protective enzyme activity
parsley, carrots, citrus fruits, broccoli, cabbage, cucumbers, squash, tomatoes, eggplant, peppers, soybeans, berries
Block receptor sites for hormones that promote cancer
cabbage, Brussels sprouts, kale
Stimulate production of enzymes that break down cancer causing agents
parsley, carrots, broccoli, cabbage, tomatoes, eggplant, peppers, citrus fruits, whole grains, berries
Antioxidant properties; inhibit nitrosamine formation and help form protective enzymes
green tea, berries
Antioxidants linked to lower rates of gastrointestinal cancer
As you can see, a wide variety of fruits and veggies fall into one or more of the categories named above. Of note, the benefit from phytochemicals comes from eating the food, not in taking pills or supplements. Fruits and veggies contain a variety of phytochemicals, vitamins, and minerals, as well as fiber — these cannot be replicated in a pill form. In addition, excessive amounts of certain vitamins or other compounds found in some supplements have the potential to cause harm.
For tips on how to pack plenty of fruits and vegetables into your diet, check out The Get Balanced! Guide to Healthier Eating. This tool that has been developed specifically for Columbia students. You may also want to check out the Optimal Nutrition section of the Go Ask Alice! archives.
To optimize your antioxidant intake, you can include at least five servings of fruits and veggies a day. If you're already doing this, why not aim for even more? Researchers have found that five to nine servings per day are most beneficial. Set your sights on variety, too. To obtain the benefits of these plant compounds, try to vary your selections from day to day, and from week to week. Include red, yellow, green, orange, blue, purple, brown, and white fruits and veggies, and enjoy a colorful (and healthful) eating plan!
Dear Hungry after Diet Cokes,
People have varying reactions to diet sodas. Whether they're due to the aspartame (brand name, Nutrasweet), or something else, is a good question. Many studies have investigated the effect aspartame has on appetite because some people find it increases the desire to eat, while others notice it suppresses it. Questions remain because the results are not consistent. Even when blood sugar levels were measured after drinking an aspartame-sweetened beverage, some levels increased, others decreased, and the rest remained unchanged.
Most likely the caffeine in the soda isn't what's making you hungry. Caffeine is generally regarded as a mild appetite suppressant. Don't get any ideas here, because it is not successful in weight control. Caffeine's effect on appetite is short lived. Studies on this subject have consistently shown that caffeine is not an effective weight loss aid. In terms of caffeine content, a 12-oz. can of diet cola typically has about 35 mg of caffeine while a 12-oz. cup of brewed coffee has about 150 - 200 mg.
Chemical effects aside, here's another possibility: lots of people substitute a diet soda for a snack, or even worse, a meal. Ignoring your hunger denies your body the energy it needs. Instead of feeling satisfied from the soda, your need to eat becomes more pronounced. It may not be the aspartame, but the lack of food that's driving your appetite. Take notice of when the diet soda makes you hungry. If it has been a few hours since you've eaten, you probably need some nourishment. Instead of having that diet soda, try to eat a healthy and satisfying snack (or meal, if a longer time has passed).
If you find that the diet soda makes you hungrier when you're having it with a meal, consider whether your meal is filling. Substitute water for the diet soda and see if you feel the same way. If you're still hungry afterwards, then you need to re-work your meal. Either way, it's a good idea to cut down on the diet soda. Try water or seltzer with a spritz of juice for added flavor instead. Better yet, some milk or juice may help to fill you up and provide some valuable nutrients.
In order for coffee to qualify as decaffeinated, it must have at least 97 percent of its caffeine removed. What does that chock up to? An eight-ounce cup of decaf coffee would have no more than 5 or fewer milligrams of caffeine (compared to the range of 40 - 180 mg. typically found in one eight-ounce cup of brewed, dripped, or percolated java). Your concern over the safety of decaffeinated coffee probably stems from solvents used in the past.
Today, most processors use safe methods to remove caffeine. A few different techniques are available, and understanding them may help allay your concerns about coffee contaminants. Coffee beans are decaffeinated by softening the beans with water and using a substance to extract the caffeine. Water alone cannot be used because it strips away too much of the flavor. The goal is to extract the caffeine with minimal loss of flavor. Substances used to remove the caffeine may directly or indirectly come in contact with the beans, and so the processes are referred to as direct or indirect decaffeination.
In one process, coffee beans are soaked in water to soften them and dissolve the caffeine. The water containing the caffeine (and the flavor from the beans) is treated with a solvent, heated to remove the solvent and caffeine, and then returned to the beans. The flavors in the water are reabsorbed by the beans, which are then dried. This process is referred to as "indirect decaffeination," because the beans never touch the solvent themselves. The most widely used solvent today is ethyl acetate, a substance found in many fruits. When your coffee label states that the beans are "naturally decaffeinated," it is referring to this process, specifically using ethyl acetate. Although it doesn't sound like a natural process, it can be labeled as such because the solvent occurs in nature. Other solvents have been used, some of which have been shown to be harmful. One, methylene chloride, has been alleged to cause cancer in humans and therefore is not often used. Back in the 1970s, another solvent, trichloroethylene, was found to be carcinogenic and is no longer used.
Another indirect method soaks the beans in water to soften them and remove the caffeine, and then runs the liquid through activated charcoal or carbon filters to decaffeinate it. The flavor containing fluid is then returned to the beans to be dried. This charcoal or carbon process is often called "Swiss water process" (developed by a Swiss company). If your coffee is labeled naturally decaffeinated or Swiss water processed, you can be assured that no harmful chemicals are used. If you are uncertain, you can ask or call your coffee processor to learn about the method used.
A direct decaffeination process involves the use of carbon dioxide as a solvent. The coffee beans are soaked in compressed CO2, which removes 97 percent of the caffeine. The solvent containing the extracted caffeine evaporates when the beans return to room temperature.
So go ahead and enjoy that Cup of Joe — caffeine free!
Somthing's fishy about your lab results. The improvement in your cholesterol levels may be due to the foods you replaced with the fish, rather than the fish in and of itself. The fats found in some varieties of fish, omega-3 fatty acids, reduce triglyceride levels in the blood, but generally do not affect cholesterol levels.
However, you're still doing yourself a favor by feasting on fish. Eating fish offers many major health advantages. The primary benefit found from including fish oils in your diet is the lowered risk for sudden cardiac death. This means that fish eaters decrease their chance of dying suddenly from a heart attack (keep in mind that there are different types of heart attacks).
Two mechanisms explain how eating fish reduces the chance of heart attack. First, it seems that fish oil fatty acids reduce blood clotting by decreasing the stickiness of blood platelets. Second, omega-3 oils may play a role in stabilizing heart rhythms. It could be that the electrical impulses that go awry during some heart attacks are preserved in fish eaters. These protective qualities may work together, resulting in the reduced risk of sudden cardiac death that has been observed among fish consumers. Other possible health benefits of omega-3 fatty acids are their potential to help lower blood pressure and protect against some forms of stroke.
Remember, it is possible to have too much of a good thing. There are certain risks associated with eating too much fish. The main risk has to do with the toxicity of environmental contaminants, primarily mercury, which ends up in fish due to environmental pollution. Because of this, women who are pregnant or breastfeeding are often advised to avoid fish. In addition, there are various recommendations for eating fish to avoid consuming dangerous levels of mercury, as its toxicity can damage the brain, kidneys, and lungs. Mercury levels may be especially high in shark, swordfish, king mackerel, and tilefish.
But in moderate amount, fish can be beneficial, especially for people eating a western diet that is often low in omega 3s. Good sources of omega 3 include:
- Mackerel (watch out for the higher mercury levels in king mackerel)
- Rainbow and lake trout
- Albacore, blue fin, and yellow fin tuna (including the canned type)
- Striped sea bass
- Swordfish (watch out for higher mercury levels)
Fish oil supplements, on the other hand, contain almost no toxic contaminants and thus are safe. However, they can cause gastric symptoms, so it is best to take them with food. People with low blood pressure or who are taking medication for low blood pressure should also be careful about eating too much fish, since the fish oil could lower blood pressure even more. In very high amounts, fish oils can have some anti-coagulant effects, causing nosebleeds in some people.
Eating these jewels of the sea even once or twice a week may lead to heart healthy benefits. Obviously an all-around healthy diet will provide even more protection from heart disease, and other maladies, too.
Feeling fruity? Devoted fruitarians say they feel better eating in this style, that it makes their life easy, and they feel it is beneficial for the environment. Fruitarian diets include all sweet fruits and vegetable fruits — including (but not limited to) tomato, cucumber, peppers, olives, avocadoes, and squash. Some fruitarians add grains, beans, nuts, and seeds to their eating plans. If these foods are included, the proportions are generally about 70 - 80 percent sweet and vegetable fruits, with some beans, smaller amounts of grains and tofu, and a sprinkling of nuts and seeds. Many fruitarians prefer to eat their food raw. Depending on which items are included, some may have to be cooked.
The human body needs a variety of nutrients. Because fruitarian diets provide fewer calories and protein than vegetarian diets, they are not suitable for teens. For a teen, the implications of missing many nutrients can have long lasting effects. Following this eating plan can cause your body to fall short on calcium, protein, iron, zinc, vitamin D, most B vitamins (especially B-12), and essential fatty acids. Not only could your height be affected, your bones may not reach their peak density, and vital nutrients for nervous system development may be missing in your diet. It's important to understand that one food cannot provide the multitude of nutrients found in a mixed eating plan.
Such a restrictive eating plan for a teen also presents other concerns. Have you thought about why you feel this eating style might be right for you, and what the ramifications also could be? If you're considering fruitarianism as a means to lose weight, or deflect attention from food issues, you are better off addressing these concerns directly. Restrictive eating can lead to hunger, cravings, and food obsessions. Also, keep in mind that a diet of one food (or of one food group) is not an effective way to cleanse the body.
As you move into adulthood, you may become interested in trying out different diets to improve your health and nutrition. For your future reference, it is recommended that adults only adhere to a fruitarian diet for a limited period of time. This is because fruitarian adults (just like their teen counterparts) can experience deficiencies in calcium, protein, iron, zinc, vitamin D, most B vitamins (especially B12), and essential fatty acids.
Lastly, keep in mind that a limited diet may cause certain social disruptions. Meals with family and friends may become more difficult. Some people with less flexible food options report social isolation.
Just planting a few seeds to think about. Now let your knowledge grow!
You and your friends have picked up on a popular debate. One aspect of weight management that is vital to understand is that we gain and lose weight over periods of time — weeks, months, years — not hour by hour. This happens as we take in more calories than we expend. Another important fact of metabolism is that our bodies do not stop working, even when we are sleeping! Hearts are beating, blood is circulating, lungs are functioning, brains are even working. This all takes energy — meaning we are still burning calories.
There is no magic time after which the body stores fat. For instance, if you eat the same exact meal at 6 pm or at 8 pm, is one more caloric than the other? No, each meal has the same number of calories. What really matters is the total amount of food and drink you have over the course of a week, or a month or longer, and how much energy you expend during that timeframe. Excess calories will be stored as fat over time, regardless of whether they are taken in during the day or night.
When it comes to eating late at night and the potential for weight gain, there are several considerations:
- Portion sizes — waiting to eat could lead to consuming larger portion sizes.
- Quality of food — after a long day of work or school, a few slices of pizza or a fast burger may seem easier than steamed vegetables and broiled fish.
- "Mindless snacking" — evenings spent studying, going out, or watching TV may lead to excess calories from fast, sugary, on-the-go options.
- Health concerns — consistent periods of going without food followed by a large meal can negatively impact the interaction between blood sugar and insulin and make you more vulnerable to Type 2 diabetes.
So, to settle the debate, you are correct that late-night calories won't change your metabolism or magically count more than calories eaten during the day. However, limiting late-night meals and snacks may be an effective weight management strategy for some because it helps them to control their overall calorie intake. Some people find that if they set a time that they can't eat past, it helps minimize or eliminate the possibility of munching on a lot of high calorie foods. Another useful tip may to be to eat four or five smaller meals and snacks spread evenly throughout the day so you don't become overly hungry at any point. Following these tips can keep your energy levels consistent for work and play and can provide some long-term benefits to help you reduce your chances for diabetes or other health issues.
June 29, 200721199
Though your metabolism IS constantly at work, it does slow down later in the day, especially if you are just dieting and not exercising. When you exercise your heart rate and metabolism both increase. In addition it is better to eat more meals and take in the same amount of calories because in doing so you keep your metabolism working. On the other hand if you eat less or worse starve yourself for several hours your metabolism slows down and potentially puts your body into a "starvation mode" where more insulin is released causing the body to store more fat. This is the most simple answer to this question.