Calories are a measure of the energy present within foods. Only three types of molecules contain calories: carbohydrates, proteins and fats. These molecules also have various functional and structural uses in the body.
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Vitamin C, also known as ascorbic acid, is an essential compound in the human diet that is required for the synthesis of collagen, a structural component in the assembly of blood vessels as well as tendons, ligaments and bone. It's found almost exclusively in plant-related food such as vegetables and fruits.
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N-acetylcysteine, or NAC for short, is a pharmaceutical drug and nutritional supplement derived from an amino acid known as L-cysteine. Doctors may recommend NAC to reduce the intensity of the common cold and related viral infectious diseases such as influenza.
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A carbohydrate is an important organic nutrient that has numerous roles in living things. It stores energy, acts as a structural component, at least in plants, and forms the backbone of genetic molecules such as DNA and RNA.
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Omega-3 is an essential fatty acid that plays a critical role in the growth, development and normal function of the brain. Research also suggests that omega-3 can reduce inflammation and lower the risk of heart disease, arthritis and certain types of cancer.
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The time required by your body to digest and absorb nutrients is the transit time. Before ultimately reaching the organic tissue, nutrients must move from the mouth to the stomach and then through the small intestine, where most absorption occurs.
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L-tyrosine is a chemical building block called an amino acid. Amino acids form the molecular foundation of proteins, a class of molecules upon which all life depends. Amino acids, however, also have their own individual and unique functions.
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Sodium bisulfite, also known as sodium hydrogen sulfite, is a white, odorless inorganic salt that is used as an additive in certain foods. In very small, microscopic quantities, sodium bisulfite is relatively benign, and the Food and Drug Administration generally recognizes it as a safe substance.
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Getting enough essential nutrients can sometimes be a concern for those on specialized diets, such as meat, dairy and egg-free vegan diets. A varied diet, fully obtainable with vegan restrictions, can provide all the amino acids required for complete proteins and good health.
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High protein diets have gone in and out of style as a way to lose weight and build more muscle. Women most often are concerned with weight loss, but when it comes to muscle building, most believe more protein is the way to go.
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Speed and agility are considered skill-related components of fitness rather than health-related, according to the National Strength and Conditioning Association. Athletes train for speed and agility regularly as part of their training programs, but everyone can benefit from this type of training.
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Knowing that you should exercise is sometimes just not enough motivation. You hear about it on the news, or even when you turn on your computer. It's true that exercise is an essential part of a healthy lifestyle.
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Lifting weights, or resistance training, is key to improving the appearance of your arms. It adds lean muscle tissue and develops the appearance of muscular tissue. Resistance training also aids in increasing your metabolism to help control excess body fat.
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You worked hard and now have the slim, shapely thighs you wanted. But the work does not stop just because you look good. To maintain your slim thighs you need to consistently train your body -- for the rest of your life. Exercise is a habit and a lifestyle.
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A fit lifestyle includes resistance training exercises for your entire body. The pectoral muscles lie under your breast tissue, and depending on breast size, you may not see much definition. Females training their pec muscles will not increase or decrease breast size.
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Approximately 68.8 percent of adult men and women in the United States are considered overweight or obese, according to the Weight-control Information Network. Since exercise helps you burn calories, and lose weight, many people want to know how much they have to do to see the scale change.
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Over two thirds of American adults are classified as overweight or obese, according to the Centers for Disease Control. Weight loss is a major concern not just for appearance but for health and quality of life.
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Performing regular sessions of abdominal exercises may not be enough to obtain flat abs. You also need to maintain a healthy, balanced diet and perform regular sessions of cardiovascular exercise. Lowering your body fat and avoiding excess fat and calories will help you achieve flat abs.
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Just doing resistance training for the back of your arms won't get rid of the fat. Spot reduction -- where you get rid of fat in just one part of your body -- is a myth, according to the American Council on Exercise.
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Swimming is a low-impact form of cardiovascular exercise that is appropriate for most people. It uses muscles in your core, upper and lower body to move you through the water and raise your heart and respiration rate.
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