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Refined Grains | Any grain that is not a "whole grain" is a refined grain. This includes grains and grain products missing the bran, endosperm, and/or germ. Many refined grains are low in fiber and enriched with iron, niacin, riboflavin, and thiamin and fortified with folic acid as required by U.S. regulations. Some examples of refined grain products are white flour, white bread and tortillas, and white rice.
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Relative Intensity | The level of effort required by a person to do an activity. When using relative intensity, people pay attention to how physical activity affects their heart rate and breathing. See "Measuring Physical Activity" for more.
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Repetitions | The number of times a person lifts a weight in muscle-strengthening activities. Repetitions are analogous to duration in aerobic activity. |
Resistance/Strength Training | A type of physical exercise specializing in the use of resistance to induce muscular contraction which builds the strength, anaerobic endurance, and size of skeletal muscles. Training commonly uses the technique of progressively increasing the force output of the muscle through incremental weight increases and uses a variety of exercises and types of equipment (dumbbells. medicine balls, kettle balls ect) to target specific muscle groups.
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Resveratrol | The antioxidant found in grape skins gives red wine its health benefit, including preventing cancer, lowering bad cholesterol and inhibiting signs of aging.
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Retinol | See?Vitamin A.
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Riboflavin | See?Vitamin B2.
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SAMe (S Adenosylmethionine) | SAMe, a natural metabolite of the amino acid methionine, plays a key role in dozens of chemical reactions in the body.
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Satiety | Satiety refers to the feeling of satisfaction or fullness produced by the consumption of food. |
Saturated Fat | This type of fat is solid at room temperature. Saturated fat is found in full-fat dairy products (like butter, cheese, cream, regular ice cream, and whole milk), coconut oil, lard, palm oil, ready-to-eat meats, and the skin and fat of chicken and turkey, among other foods. Saturated fats have the same number of calories as other types of fat, and may contribute to weight gain if eaten in excess. Eating a diet high in saturated fat also raises blood cholesterol and risk of heart disease.
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Sea Salt | While some salts, like the traditional table variety, can contain iodine and other additives, unrefined sea salt is additive free and contains more micro-nutrients and trace minerals, including calcium, magnesium, and potassium. Made from evaporated seawater, sea salt has a grainy texture and pure taste.
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Sedentary Behavior | Any waking activity predominantly done while in a sitting or reclining posture. A behavior that expends energy at or minimally above a person?s resting level (between 1.0 and 1.5 metabolic equivalents) is considered sedentary behavior. |
Seitan (Also Called Wheat Gluten) | A vegetarian replacement for meat, made of protein (gluten) extracted from flour
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Selenium | Selenium is an essential trace mineral. Selenium activates an antioxidant enzyme called glutathione peroxidase, which may help protect the body from cancer. Yeast-derived forms of selenium have induced apoptosis (programmed cell death) in cancer cells in test tubes and in animals. One study found that men consuming the most dietary selenium developed 65% fewer cases of advanced prostate cancer than did men with low levels of selenium intake. |
Serving Size | A standard amount of a food, such as a cup or an ounce.
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