A cup of warm milk is no magic sleep potion, yet it is probably the most common food associated with bedtime. Milk contains two substances that are known to be related to sleep and relaxation, the hormone melatonin and the amino acid tryptophan. The amount of melatonin in a glass of milk is minute, much less than what would be taken in a supplement. The amount of tryptophan in milk is also small. In addition, our digestive process is complex. Considering these factors, it is unlikely that a glass of warm — or cold — milk would shorten the length of time that it takes to fall asleep.
Though milk components and serving temperature are not likely to influence the onset of sleep through physiological means, warm milk might have psychological significance. The routine of consuming a glass of warm milk may elicit memories of mom, home, and comforts of childhood that help us to relax. This is part of the natural transition from wakefulness to sleep. Recommendations include practicing stress reduction techniques, sticking to a regular sleep schedule, creating a relaxing bedroom environment, and avoiding caffeine or heavy meals close to bedtime.
For some individuals, particularly those with lactose intolerance or milk allergies, a glass of milk can be followed by uncomfortable digestive consequences. Lactose reduced, soy, almond, and rice milk are options that are more likely to be tolerated. If you have no allergy or intolerance, and warm milk simply grosses you out, you could try flavoring it with a bit of honey, vanilla, or cinnamon, but there is no reason that you need to continue attempting to use it as a sleep aid. Keep drinking your cold milk, to meet your daily calcium needs, and try other sleep improvement techniques.
February 27, 2012507786
November 12, 200821491
I am a lover of milk and love it cold or warm. I have always had success w/ warm milk lulling me to sleep. I have even had occasions when I've had a decaf coffee drink w/ steamed...
I am a lover of milk and love it cold or warm. I have always had success w/ warm milk lulling me to sleep. I have even had occasions when I've had a decaf coffee drink w/ steamed milk and it did me in for the rest of the work day. It really has worked for me in all the years that I have been doing it. As a matter of fact, it's a cool night where I am tonight and I'm going to have a nice warm mug of milk and maybe add a little honey and vanilla, curl up in my bed, and read until I'm done partaking... yum, what a treat! Sweet dreams, ya'll...
January 10, 200721178
I have been having trouble falling asleep and do not wish to use pills. I have found that 1 measuring cup of warm milk does put me to sleep. There is very little time between the...
I have been having trouble falling asleep and do not wish to use pills. I have found that 1 measuring cup of warm milk does put me to sleep. There is very little time between the actual drinking of the warm milk and my being asleep. This is not usual for me to fall asleep so fast, so it must be the warm milk.
March 3, 200621030
Just wanted to add that in most microwaves a minute is all you need to get it hot. 3 minutes is like cooking!!
Just wanted to add that in most microwaves a minute is all you need to get it hot. 3 minutes is like cooking!!
Dear To sneeze or not to sneeze,
People in the United States spend billions of dollars a year trying to escape the misery of the common cold. Though some swear by remedies ranging from vitamin C to garlic to exercise, scientists have not conclusively found anything that will prevent, cure, or shorten the course of the common cold. The manufacturers of Airborne claim that the unique combination of herbs, amino acids, antioxidants, and electrolytes "offers vitamin and mineral support for hours," and imply that it helps the body fight bacteria and viruses by boosting the immune system. They have withdrawn their original claims that their product cures or prevents colds.
In addition to vitamins, Airborne contains Echinacea, an herbal supplement some people take on its own for colds or the flu. Similar to research on vitamin C, studies draw a mix of conclusions about whether Echinacea works in preventing or treating colds. There are many products on the market, as well as natural remedies, that successfully treat the symptoms of the cold: body aches, sore throat, stuffy nose. However, as of yet, there is no proven cure.
Some people may feel that Airborne works for them, but it's tough to say conclusively. Colds can last anywhere from one to ten days and a person's immune system will eventually fight it off, even without vitamins or supplements. There has been one study on the effectiveness of Airborne. The clinical trial was a double-blind, placebo study, meaning that neither the researchers nor the participants knew who took the real supplement and who took the placebo until after the trial ended. The study found that Airborne out-performed the placebo, however many people question the potential bias of this study because the research was conducted by the manufacturer.
Additionally, some people have expressed concern about the amount of vitamins A and C contained in Airborne. According to the Food and Drug Administration, the average adult should have 5000 units of vitamin A each day, and 60mg of vitamin C. One dose of Airborne contains 5000 units of A and 1000mg of C, and the package recommends taking a dose every three hours. That means taking significantly more than the recommended daily allowance of both. Overdosing on vitamin A may cause nausea, vomiting, headache and dizziness. Too much C can cause diarrhea and excess gas.
Subways and other enclosed spaces with many people can be germy, especially in cold season. Medical professionals say your best defense against the common cold is maintaining a healthy lifestyle. That includes: eating a balanced diet, being physically active, and getting plenty of sleep. On top of that, thorough hand washing with soap and water, especially before you eat, can keep the subway germs at bay. So, before you go out and buy the new very berry flavor of Airborne or a similar supplement, it might be wise to take its claims with a grain of salt (mix with 8 ounces of water and gargle!).
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.
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.
Dear Sleepy cook,
Sounds like a very tasty meal — one that would be tragic to discard. Unfortunately, it is likely that while you were sleeping, bacteria were partying on your stove and reproducing at alarming rates. Bacteria thrive at 40 to 140 degrees F and reproduce quickly. Thus, you should probably toss the sauce. Perishable foods should not be away from the fridge for more than two hours; seven hours would really be pushing it. Here are a few basic guidelines to follow in re-heating and refrigerating leftovers:
- Tempting as it may be, do not taste food to determine if it is spoiled. You may get sick even from a small taste and your taste buds may not always detect good sauce gone bad.
- Invest in a meat thermometer.
- When initially cooking beef, chicken, or pork, make sure the meat reaches a minimum internal temperature of 160 degrees.
- Make sure fish reaches a minimum temperature of 145 degrees.
- Reheat all leftovers to 165 degrees.
- Bring leftover sauces, soups, and gravy to a boil.
- When wrapping up freshly cooked leftovers, store in multiple smaller containers so they cool more quickly.
- Know that eating perishable foods that have been away from the fridge longer than two hours can be risky.
While it's ultimately up to you whether you eat or toss, wise eaters are wary of food that has been out a couple hours or more. Best of luck with future leftovers,
August 6, 2013534185
Wild yam (Dioscorea villosa) and Mexican yam have been marketed as alternatives to synthetic progesterone (not estrogen), which is a hormone taken by some women during menopause. These yams contain diosgenin, a plant substance that has a chemical structure similar to progesterone. In the laboratory, diosgenin can be converted to progesterone by using specific reagents and enzymes to carry out a series of chemical reactions. This transformation can only be performed in a lab — the same process does not occur in the human body. As a result, it's actually misleading for a manufacturer to term a wild yam supplement as "natural progesterone" because it is not progesterone, nor does it have any impact on a woman's hormone levels. Since diosgenin doesn't have hormonal activity itself, creams containing this substance are not effective.
In the United States, what is commonly referred to as a "yam" is actually a variety of sweet potato (ipomoea batatas). Yams are similar in shape to sweet potatoes, but are drier and starchier in taste, and are rougher and scalier in texture. Sweet potatoes are a good source of beta-carotene, vitamin C, folic acid, and some B vitamins. Predominantly grown in the Caribbean and Africa, yams are a good source of potassium, but contain no beta-carotene, and have lower levels of B vitamins, vitamin C, and folic acid than sweet potatoes. Eating sweet potatoes or yams will provide nutrients, but, as they contain neither progesterone nor estrogen, they won't affect a woman's hormonal balance.
Dear In a quandary,
Your friend definitely isn't alone, but in order for her to change her behaviors or ingrained patterns, she needs to acknowledge that a problem exists, or see a benefit from making a change. Because food and eating habits are such a personal aspect of our lives, it can be a sensitive area of discussion. To answer your first question, diets that are high in fat, sodium, and calories, and low in fruits, veggies, calcium, and other nutrients, may contribute to the development of diseases, such as heart disease, diabetes, hypertension, and osteoporosis, among others. If this factor is a concern to your friend, she may consider changing her patterns. However, if she is healthy now, the thought of developing any of these conditions in the far off future may not be motivation enough for her in the present time to change habits with which she's been comfortable.
One thing is for sure — criticizing and nagging don't work! So, what can you do? First of all, you can suggest spending time together doing some sort of activity. If you can get your friend moving, she may become interested in eating more healthfully. Try to disguise exercise into a fun pursuit. Some ideas include:
- Going for a walk
- Bike riding
- Flying a kite
- Playing Frisbee
- ice skating
- Borrowing a dog to bring to the park (or bringing your own) and playing ball
Another tact you can try is to determine something that is important to her, and show her that eating better can help improve the matter. While many people aren't motivated by diseases they can't relate to or that seem intangible, immediate concerns can hold more relevance. For example, skin problems, low energy levels, or stomach discomfort can promote a greater incentive or inclination to change. If she complains about any of these conditions, some appropriate suggestions could include drinking more water than diet soda, substituting a juicy piece of fruit for the chips, or heading over to an enticing salad bar rather than making a quick trip for fast food. Considering and implementing any changes or new patterns are only part of the challenge; maintenance is also key, and can be easier to follow-through when done together with a peer than by one's self. Your can demonstrate your support by bringing over some farm fresh apples, cooking a healthy meal together, going to lunch together at an eatery where healthy choices are available, walking together regularly during lunch breaks, etc.
Remember, gentle suggestions are better received than harsh criticism. Advice that begins with "You should..." may fall on deaf ears. Instead you can try to initiate a discussion, saying something like, "You know, I just read an article that said drinking water is important for keeping skin healthy... and I'm drinking more water as a result." Having a conversation about this subject may get your friend to think, and perhaps try, to take steps leading to healthier patterns of eating and activity. Then again, she may decide not to pursue anything at this time. If this is the case, you can express your concern to your friend, and let her know that if she would ever like to pursue healthier eating habits you are ready to support her. In the mean time, remember why you're friends in the first place and enjoy your time together!
November 7, 200821262
To the reader:
I think you could try to teach your friend about enjoying healthy food. It only works if you are subtle, so work in small steps. Try inviting her over for dinner and cooking...
To the reader:
I think you could try to teach your friend about enjoying healthy food. It only works if you are subtle, so work in small steps. Try inviting her over for dinner and cooking a healthier version of pizza or lasagne or some other food she might recogize. Or take her out for a healthy but filling meal at a good quality restaurant (Italian is often good for this). By doing this the aim is to lead by example: show her that healthy food tastes great, fills you up and can contribute to a fun meal, as well as being good for you. Then she will see that living a healthy lifestyle needn't be torture, in fact it is something that a lot of people (chefs, gourmet food lovers, etc.) deliberately seek! Good Luck!
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.
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!