Dear A Sip of Calm,
Can we actually find relaxation in a can? Seems like it could be a great idea, unfortunately, at this point in time, it's just too good to be true. Just like herbal supplements, the FDA does not require companies manufacturing the "relaxation beverages" to prove their claims or standardize their ingredients. As such, there is no conclusive scientific evidence that any of these products are safe and effective. What little research has been done has shown that many compounds in these drinks, such as 5-HTP and melatonin, degrade in water. Other ingredients such as GABA, cannot cross the blood-brain barrier so are completely ineffective. One study even tested five popular brands and found that many of the ingredients listed were barely even present in the drinks themselves!
Two popular ingredients in relaxation beverages that have been studied are valerian and kava and the news is not good. Valerian can cause dependency if taken regularly while kava has been shown to cause liver damage. These types of ingredients can also interact with medications such as Allegra or benzodiazepines (Xanax, Valium, Atvian, etc.) or even with Tylenol and cause serious health problems.
What's your best bet for relaxation? For starters, maintaining a proper diet, exercising, and trying to keep a regular sleep schedule can contribute to feelings of relaxation. You may also want to try meditation and/or yoga.
In the end, it seems as if nothing beats a glass of warm milk or hot (decaf) tea to unwind in the evening.
There is so much nutrition information available from a host of different sources and it’s not hard to see why confusion can arise. You may have access to information published in scientific journals, which are studies that have been critiqued by nutrition experts. At the other end of the spectrum, some sources such as websites and corporate advertisements are created with the intention of boosting sales of the latest diet book or food product. In order to increase the chances of finding valid nutrition information, it's important to identify, use, and refer back to sources you trust. Additionally, when comparing information from multiple sources it is very important to make sure you are comparing exactly the same thing (same serving size, same source, etc).
When gathering information online, it is important to determine who sponsors the site, how often it is updated, the sources for information, and if advertising is involved (or influences content). As an example; Go Ask Alice! is sponsored by Columbia University, content is updated daily (all pages have an update date listed), the sources are described (see below), and the site is advertising free (learn about our no ad policy).
The U.S. Department of Agriculture (USDA) is generally the most reliable source of nutrition and food-related information for the general public in the United States. The dietary guidelines can be found at their MyPlate website where you can also find sample menus and recipes, a food tracker, BMI calculator, as well as several other useful health and food-related tools.
The USDA also has a National Nutrient Database, which is a reliable source for nutrient values for foods. Frequently, this site is accessed by nutrition researchers and developers of nutrient analysis programs. The National Nutrient Database site is user friendly enough that even regular people will be able to do a food search during her/his first visit to the site. Even the National Nutrient Database site, however, can be confusing. For example, it will generate conflicting numbers for nutrients in products such as milk, which comes in a number of varieties. For example, cow's milk provides 8 grams of protein per 8 ounces, evaporated skim milk provides 19 grams, and soy milk, 3 grams. The lesson learned here is to check the details of the food you searched for if the results seem different. For example, a search for milk could yield information on both coconut milk and cow's milk.
The MyPlate SuperTracker and the Nutrient Analysis Tool (NAT) are comprehensive online programs that can be used to analyze not just one food, but an entire day of food intake. They show a comparison of the analysis to your daily nutrient needs. The food lists in these programs come from the USDA National Nutrient Database, and nutrient needs are based on the Recommended Dietary Allowance (RDA).
RDAs are amounts of nutrients that, if consumed on a daily basis, would meet the needs of approximately 97 percent of the population, and are amounts that have been established after years of intensive research studies. The RDA of protein for adult males is 56 grams per day, and for women it is 46 grams per day. This general recommendation is based on 0.8 grams of protein per kilogram of body weight, for individuals in good general health. Protein needs can vary depending on a person's health status and exercise regimen.
For a personalized assessment of your nutrient needs Columbia studnets can make an appointment with a Registered Dietitian. Columbia University students can call x4-2284 or log into Open Communicator to schedule an appointment. Non-students may have access to a nutritionist through her/his primary health care provider or search for a dietitian in your area through the Academy of Nutrition and Dietetics web site. You might also want to check out the resources listed on the Columbia Health Get Balanced nutrition page.
For additional information regarding finding quality health information online, check out Health information on-line: Whom can you trust? Hopefully these new resources will help to clear up your nutrient value confusion, making it easier for you to make healthier eating choices.
Dear Long Cooker,
Whether you’re an avid chef or a microwave maven, it is important to know that overcooking can deplete the amount of vitamins and minerals in foods. If you are cooking your pasta and beans for as long as you say, you are most likely losing some of their nutritional value. Overcooking destroys bonds between molecules, significantly depleting the nutritional value. For example, overcooking can destroy amino acids and many of the B vitamins, such as Vitamins B-1 and B-5. These vitamins are important for metabolism and energy production.
Generally, shorter cooking time retains more nutrition in a food. Here are a few basic cooking guidelines for your pasta and beans:
Beans, peas, and lentils (members of the legume family) are low in fat and high in fiber, making them a healthy part of your diet. Cooking your beans properly can make them a nutritious and delicious addition to a meal. Dried beans should be soaked overnight in fresh water. They are then cooked for 1-3 hours, depending on the variety of bean. This is standard preparation, and beans cooked in this manner are full of nutrients.
Pasta is a complex carbohydrate, with more fiber and a lower glycemic index than simple sugars. Overcooking pasta can strip it of its fiber content. Most pasta only needs to be boiled between 5 and 15 minutes, depending on the cut of the noodle. Overcooking pasta will only add to the loss of vitamins (especially water-soluble B vitamins) and minerals that occurs when you cook it. Another tip: try not to rinse cooked grains and pasta, as this causes further loss of nutrients.
The style of cooking plays an important role in the overall nutrition of food as well. Whether fresh, steamed, baked, grilled, boiled, or fried, how food is prepared can modify the nutritional content. For instance, boiling leeches more nutrients out of vegetables and beans than baking, as many of the vitamins in vegetables are water-soluble. Steaming and microwaving your food can help maintain the most nutrients.
While it appears that androstenedione has helped some people (a few prominent athletes included) increase their muscle mass and recover more quickly from injury, there is no scientific research supporting these results. In order to help you decide whether such nutritional supplements are right for you, let’s first take a look at androstenedione.
Androstenedione is a direct precursor hormone to testosterone and other hormones including one type of estrogen. It is converted from cholesterol, as are all other steroid hormones. Specific enzymes and hormones, among other things, must be present and ready to work for these conversions to take place. For instance, luteinizing hormone, produced and released by the pituitary gland, plays a pivotal role in converting androstenedione to testosterone. Simply introducing extra androstenedione to your system does not automatically indicate that all of the necessary players will be there to produce testosterone or improve the productivity of your workout.
About sixty years ago, when androstenedione was first synthesized, it was shown to have both androgenic (male hormone-like) and anabolic steroid-like properties. The anabolic effects were considerably less than those of testosterone. Subsequent research found that testosterone levels rose after inhalation of androstenedione, but remained elevated for only a couple of hours, with peak levels lasting a few short minutes.
Beyond these cursory early studies, rigorous studies have come to two broad conclusions about androstenedione. First, despite increasing testosterone levels for those with low baseline testosterone levels such as women and older men, androstenedione has not been shown to increase the testosterone levels of young men or to improve the effectiveness of their exercise regiments aimed at building muscle.
What side effects can you expect from androstenedione? No one knows for sure. Androstenedione falls under the category of steroid hormones, which are known to have androgenic and anabolic properties. Therefore, androstenedione may produce side effects similar to those of testosterone-based anabolic steroids. The most dangerous of these side effects is the increased risk for cardiovascular disease, certain cancers, depression, psychoses, and even extreme aggression. There are also gender-specific effects. For men, these include shrinking testes, increased hair loss, enlarged breasts, and possible sterility. Women may experience side effects such as shrinking breasts and uterus, enlarged clitoris, irregular menstruation, increased facial and body hair growth, and a deepening voice. In fact, due to many potential negative health hazards, the Food and Drug Administration (FDA) has prohibited the sale of over-the-counter androstenedione and similar steroid-like dietary substances.
Is it safe? Safety can be difficult to determine when you don't really know what you're dealing with. Is it worth the risk? That's for you to decide. Before you begin taking any dietary supplements you may want to speak with your healthcare provider. S/he can answer your questions and give you more detailed information. Columbia students might want to consider making an appointment at Medical Services by calling x4-2284 or online using Open Communicator. Students on the Medical Center campus can contact the Student Health Service.
Trying to make sense of all the vitamin and mineral supplements on the pharmacy shelves may make you feel stuck between a rock and a hard place! Before you swallow any information, it is important to know that both ionic minerals and colloidal minerals have a lot of dubious marketing and advertising surrounding them. Manufacturers of colloidal and ionic supplements may make a variety of claims about their products — many of which are not confirmed by scientific research. Moreover, the body doesn’t need a whole lot of minerals; fewer than 20 have been judged to be essential to your health.
A colloid is a mixture in which particles are suspended in a liquid or a gas. Colloidal minerals come from humic shale deposits, primarily from Emery County, Utah. After collection, the shale is crushed and placed in water so that the minerals can enter the solution. Colloidal mineral distributors stress the “naturalness” of their product and have made claims about improving conditions associated with certain diseases, a practice judged to be illegal by the FDA. In addition, some advertisements state that colloidal supplements contain 75 minerals, many of which have not been proven to be beneficial to health (such as platinum, gold, and silver).
Ionic mineral distributors state that colloidal minerals have too large of a particle size to be absorbed by the body. Therefore, ionic minerals (named after their supposed positively and negatively charged molecules) were created to have the “correct electrical charge” and therefore lead to higher levels of absorption by the body. Although these supplements may actually lead to greater absorption, it is important to remember that there are various other conditions that must be present in the body in order for this to happen.
In reality, the body only needs minerals in trace amounts. Excessive dosages of minerals can actually be toxic. Therefore, before you experiment with any vitamin or mineral supplements, you may want to speak with your health care provider. A provider can help you sort out fact from fiction, so you can make an informed decision and avoid products that may be harmful or simply ineffective. In certain cases, you may be better off wearing these minerals than ingesting them!
December 11, 2012520002
When it comes to weight, the two factors to pay attention to are calories consumed and calories burned. If you consume more calories than you burn, you will gain weight and vice versa. The problem here is either that you are not consuming enough calories or your body is somehow not making the best use of them. Before we get into the biological possibilities, try a quick dietetic experiment.
With all the media surrounding diets and obesity, it may be easy to get the wrong idea about what constitutes "healthy." Eating a lot of vegetables as you do is great (and a vital component of a healthy diet) but vegetables are low in calories and many don't contain fat or protein, both nutrients your body needs. When you feel those hunger pains, consider grabbing a snack or a meal that combines all of these, such as a salad with chicken (lean protein), avocado (healthy fat and a fruit!), and low-fat ranch dressing. Including more healthy fats (limit trans and saturated fats) and lean proteins (also found in seafood, dairy, and nuts) in your diet may help you feel fuller longer and will also add more healthy calories into your diet.
If this doesn't curb your appetite, there may be other factors affecting your hunger sensors, which a health care provider may help identify. Some questions to ask yourself are whether you've been feeling increased anxiety, if you've recently started or changed medications, or if you've experienced increased thirst, heart palpitations, or a need to urinate. These may be signs of hunger-causing conditions such as:
- Anxiety and other mental conditions
- The use of drugs such as corticosteroids and anti-depressants
- An overactive thyroid gland (hyperthyroidism)
- Grave's Disease
List adapted from The National Institutes of Health.
If you experience nausea or vomiting along with your insatiable hunger, that may be a sign that you have a parasite (such as tapeworm) in your digestive track. That possibility brings a whole new meaning to "eating for two." In the related Q&A's below, you may want to read more about parasites as well as other conditions that could explain your hunger. Regardless of the cause of your insatiability, though, if you lose more than ten pounds or five percent of your bodyweight unexpectedly or if weight loss persists, consider contacting a health care provider to get to the bottom of the issue…and your bottomless stomach. Columbia students may do this by contacting Medical Services or logging on to Open Communicator.
Whatever the cause of your endless appetite, hopefully this has sated your hunger for an answer. Eat up!
February 3, 2012506179
Dear Overactive eater,
Generally, a case of the munchies is your body's way of signaling that it's time to refuel. If snacks and even full meals don't fill you up, there may be another cause for your ongoing hunger. If diet changes don't do the trick, a visit to a health care provider may ease your mind and your appetite.
Based on your description, it sounds like you can rule out the possibility of a digestive parasite. Rather than fueling your hunger, most stomach bugs cause digestive troubles like nausea, vomiting, and diarrhea that can kill your appetite. There is one infamous bug, the Taeniasis parasite (aka tapeworm), that is often blamed for insatiable appetites or unintended weight loss. However, Taeniasis is acquired by eating infected pork or beef so it's not likely that you have a tapeworm since you've been vegetarian for years.
As you suggested, people who follow a vegetarian diet sometimes don't get enough protein. These power nutrients give your body energy and also help you feel full, more so than carbs or fruits and vegetables. Vegetarians also need to consider the kind of proteins they eat. Unlike meats, individual plant foods don't supply all the amino acids that your body needs. To make sure you're getting a complete protein package, try combing two complementary foods that offer different amino acids from these four protein groups: grains, legumes or beans, seeds and nuts, and eggs and dairy. For example, a PBJ sandwich combines grains (go for whole wheat bread!) and legumes (peanuts) for a complete protein. Similarly, a yogurt parfait with fruit and almonds complements dairy with nuts. Newer research has indicated that protein pairings need not be consumed at the same time. That is, it should be sufficient to combine the complementary foods within the same day. For more tasty protein pairings, check out the related Q&As below about protein sources.
Another source of satisfaction comes from eating enough fat. Depending on your level of physical activity and other factors your fat needs will vary. However recent research shows that eating moderate amounts of healthy fats can really help satisfy. In addition to nuts, think avocado and healthy oils (canola, olive, safflower, trans-fat free spreads). Check out ChoseMyPlate.gov to calculate your calorie, protein, fat, and carb needs and determine whether what you're eating should be filling you up.
To make sure you're eating enough of the right proteins and fats as part of a balanced diet, it may also be helpful for you to keep a food journal. You can use the journal to plan out meals, make grocery lists that include healthy and filling snacks, and record when and what you eat throughout the day (and night). The food journal may help you answer some key questions to explain the uptick in your appetite. For example, are you eating enough calories throughout the day to make you feel full? Do your tummy rumblings coincide with any particular emotions like stress, sadness, or happiness? If you do end up seeing a health care provider, the journal will help them understand your diet and what might be causing your excess hunger.
If diet changes don't seem to satisfy your hunger, there may be an underlying health condition that's giving you the munchies. According to the National Institute of Health, causes of increased appetite may include:
- Certain medications (such as corticosteroids and some antidepressants)
- Grave's disease
Premenstrual syndrome (PMS)
List adapted from the article Appetite - increased at MedlinePlus
Since there are a variety of explanations for your hunger pangs, if adding a healthy balance of proteins and fats to your plate won't satiate your appetite, your best bet is to see a health care provider. Getting medical attention is a good idea especially if you have any other unexplained symptoms like frequent urination, increased heart rate, or feeling very thirsty. Students at Columbia on the Morningside campus can call 212-854-7426 or log on to Open Communicator to make an appointment with a health care provider or nutritionist at Medical Services. If you are a student on the CUMC campus, give the Student Health Center a call at 212-305-3400 to make an appointment with a health care provider or nutritionist.
Fueling up with more complete proteins and healthy fats may help you feel full and keep your body running strong. If your hunger still hangs around, visit a health care provider to find out what your body needs to fill up and feel good. Take care,
Fortunately for people who wish to lose weight, there are universal rules that apply, regardless of your typical diet — whether you're a vegetarian or omnivore. First, to lose weight a person has to use more energy (calories) than s/he takes in. To achieve this deficit you can either make dietary changes (so you're taking in less calories), get more physical activity (so you're using more calories in a day), or you can make changes in both areas. Experts recommend making both dietary changes and getting more physical activity for the best results.
It takes a deficit of about 3500 calories to lose one pound of body weight. This means if you are able to cut 500 calories per day from your regular diet you should be able to lose a pound a week (a healthy weight loss rate). It may be beneficial to consider finding the right balance of increasing your physical activity and decreasing caloric intake. You can check out the ChooseMyPlate.gov SuperTracker as a resource that can help you calculate how many calories you need per day, what nutrients are in the foods you eat, and how many calories you burn doing different exercises.
Some suggestions for dietary changes to reduce calories:
- Steam, boil or bake foods instead of frying in butter or oil.
- Sauté foods in vegetable broth, wine, or water instead of oil.
- Limit of high-fat condiments (like mayonnaise, margarine, sour cream, cream cheese, salad dressing, etc.).
- Try low-fat dairy products and nut- or peanut butter. Vegetarians sometimes begin to rely heavily on these foods as sources of protein, but low-fat dairy and nut products provide the same amount of protein as their full-fat counterparts.
- Add beans and legumes to your diet as low-fat sources of protein.
- Eat actual fruit or vegetables rather than drinking them in juice or smoothie form. The fiber in fresh produce works well to satisfy hunger.
- Substitute water, tea, and diet beverages for regular soda, juices, and other high-sugar drinks.
- Limit the amount of alcoholic beverages consumed (empty calories for everyone).
- Begin lunch or dinner with a broth-based, vegetable filled soup or a large salad with a small amount of low-fat or fat-free dressing. These foods take longer to eat and can help curb your hunger so you don't overeat during the rest of the meal.
Be mindful of portion sizes — read nutrition fact labels to find out serving sizes. Some rules of thumb:
- A medium apple or orange is the size of a tennis ball.
- A medium potato is the size of a computer mouse.
- An average bagel is the size of a hockey puck.
- An ounce of cheese is size of four dice.
Some suggestions for incorporating more physical activity into your day:
- Take the stairs as often as possible.
- Park at the far end of the parking lot or get off the bus or subway a stop early.
- Schedule your cardiovascular exercise (walking, jogging, swimming, biking, frantically cleaning your apartment before visitors come over, etc.) so you know you will be able to fit it in. If you're at Columbia, you can participate with CU Move to help stay motivated with your physical activity efforts and earn incentives. Check out the site to learn more.
Hopefully, you'll find some of these suggestions new and helpful. Good luck!
Dear Not Fully Aware,
Your question is one many people deal with. Some people were taught from an early age to finish everything on their plate, no matter how they felt. This was often rationalized by well-intentioned parents referencing the millions of starving children around the world. Unfortunately, this type of encouragement does little to teach children about listening to their bodies or learning to identify or conceptualize the feelings that come when one is satisfied with the amount or type of food they are eating. This conditioning experienced by many growing up, can carry on into adulthood.
Others are out of touch with their body signals for other reasons. How often have you felt ravenously hungry and then couldn't believe how much you'd eaten? How much food does it seem to take to satisfy your hunger? Letting yourself get really, really hungry distorts awareness of body signals. If you're out of touch or ignore subtle hunger cues, it's extremely difficult to detect subtle fullness. As a result, you're only able to feel extremes. It's difficult to describe what comfortable fullness feels like inside your body, but some people express it as being satisfied and content after eating. Others say it's a subtle feeling of fullness, of not being hungry anymore (even if there's still food on their plate).
You can begin by thinking about how you are feeling while you are eating — a kind of checking in with yourself. This takes a conscious effort. Once you've eaten some of your food, consider asking yourself some of these questions: does the food (still) taste good? Is my hunger beginning to subside? After a few more bites, am I beginning to feel satisfied? Try stopping about halfway through to determine if you've had enough. Try rating your fullness from 1 - 10:
- Ready to collapse from hunger
- I could eat something, but not very hungry
- Not hungry at all
- Comfortably satisfied
- Full to very full
- Disgustingly sick
If you go from a 2 to a 9 easily, perhaps you are going for too long without food, or your last meal was too small (a problem for dieters). Maybe your last meal was lacking important satiety nutrients, such as protein, fat or fiber, which usually help to keep you satisfied over a few hours. Sometimes when we eat very quickly, a large quantity of food is consumed and before we realize it, we're stuffed. If this is your problem, try slowing down, taking your time chewing, swallowing, and resting between bites.
The most important part about eating to a pleasant fullness is to eat consciously — to increase your awareness. This takes practice for many people. Too often, we distract ourselves with other activities — such as studying, watching TV, or surfing the Internet, without realizing that we're full, until the entire bowl of popcorn, liter of soda, or pizza is gone. Give yourself time to enjoy and appreciate your food, and you can notice and identify its effects on your body.
For more information and insight, check out Evelyn Tribole and Elyse Resch's book, Intuitive Eating. If you are a Columbia student, you may want to make an appointment to speak with a nutritionist. Morningside campus students can contact Medical Services; CUMC students can reach out to the Student Health Service.
Best of luck!
Dear Perplexed by protein,
You're not alone — this can be a confusing subject. First some clarification — a complete protein is a protein that contains all nine essential amino acids (the building blocks of protein, which can only be obtained through eating food). Complete proteins come from animal-based products (meat, poultry, dairy, eggs, fish, etc), soy, and quinoa (a grain). An incomplete protein contains fewer than all nine essential amino acids, however incomplete proteins can be combined in meals to make a complete protein (for example by combining rice and beans or peanut butter and toast). These foods don't need to be eaten at the same time in order to be used by the body to build protein, as once was thought. We just need to eat these complementary proteins within 24 hours. Incomplete proteins come from plant-based foods, such as beans, rice, grains, legumes (other than soy), and vegetables.
Our bodies use amino acids from foods to make proteins. As a matter of fact, the amazing human body manufactures all types of substances — from hormones to muscle tissue, blood cells, enzymes, hair, nails, and many others — given the right proportions of amino acids.
All of the foods you mention contain amino acids, and therefore varying amounts of protein. Just because they don't contain all of the amino acids we need doesn't negate the fact that they contain some protein.
Although protein is a vital nutrient, our bodies don't require quite as much as you may think. The U.S. Recommended Dietary Allowance (RDA) of protein is 0.8 grams/kg per day for adults. This recommendation has been shown to meet the needs of 97.5 percent of the population. For a woman weighing 125 lbs (57 kg), her needs would be met with an intake of 46 grams of protein per day. For a man weighing 154 lbs. (70 kg), his needs would be met with 56 grams of protein a day. A person must be taking in sufficient calories to maintain their weight for these values. Dieters need larger amounts of protein, because some is burned for energy. Athletes require slightly more protein as well.
It's believed that people usually eat a variety of foods, thereby getting the amino acids needed to manufacture complete proteins. Granted, if a person only ate bread, s/he would be missing an essential amino acid. The same would be true if a person only ate vegetables. However, if these vegetarians added legumes to their diet, they would be able to obtain all of the essential amino acids needed to remain healthy. The Food and Nutrition Board of the National Academy of Sciences (which sets the RDAs) spell out the amount of each essential amino acid needed to form complete proteins. However, it isn't necessary to go that far, as long as you are covering your protein needs with a varied eating plan.
To determine your protein needs according to the RDA, divide your body weight in pounds by 2.2, which gives you your weight in kilograms, and then multiply that number by 0.8. Consult the following charts for protein content in various foods. Adjust for the serving size and the number of servings you actually eat.
|Animal Sources of Protein||Serving Size||Protein (in grams)|
|Cottage cheese||½ cup||14|
|Egg white only||1||3|
|Plant sources of Protein||Serving Size||Protein (in grams)|
|Tofu, raw, firm||3 oz.||13|
|Legumes: (Black beans, Kidney beans, Chickpeas, etc.)||½ cup||7 – 8|
|Peanut butter||2 T.||8|
|Bread||1 oz. (1 slice)||3|
|Vegetables||½ cup cooked or 1 cup raw||3|
|Pasta or rice||½ cup||3|
So, as you can see, it's not difficult to reach your daily protein needs, as long as you include a variety of foods in your daily intake. Incomplete proteins needn't be too much of a concern. Vegetarians who consume complementary proteins are usually able to easily meet their protein requirements. Columbia students who would like more information can meet with a Registered Dietitian who can provide individual counseling and help students understand and meet their unique nutrition needs. If you're interested in learning more about healthy eating habits for yourself, please schedule an appointment. Students on the Morningside campus can contact Medical Services for an appointment and students on the CUMC campus can also schedule an appointment with a Registered Dietitian.