Term | Definition |
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Insoluble Fiber | See Dietary Fiber.
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Intensity | Intensity refers to how much work is being performed or the magnitude of the effort required to perform an activity or exercise. See?Measuring Physical Activity?for more. |
Iodine | Trace mineral essential for the healthy thyroid function. Vegans should ensure a healthy (but not excessive) intake of iodine through inclusion of iodine sources such as seaweed, iodised salt or supplements. |
Iron | Trace mineral essential for the blood. Good animal-free sources include leafy green vegetables and dried fruits. |
Isoflavones | See Flavonoids.
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Isoleucine | |
Jalaric Acid | A derivative of shellac. |
Jenny Craig | This definitely falls closer to "structured diet" than "alternative dietary lifestyle". In terms of how easy it is to use, nothing beats Jenny Craig. They send you a personalized meal and exercise plan, and assign a consultant to you for weekly one-on-one counseling sessions. While it's easy to use, Jenny Craig can also be your most expensive dieting option. It's a few hundred dollars for the initial registration fee, and each week of prepackaged meals costs $100 or more. However, you get half of your registration fee back if you stay within five pounds of your goal weight for one year, giving you a financial incentive. The portions are small, and some argue that Jenny Craig does all the thinking for you. As soon as you leave the program, you're on your own to make the right choices (a fact that causes some to fall flat and gain the weight back). Jenny Craig's program incorporates the Volumetrics approach. If you're motivated to unofficially continue "Jenny Craig-ing", then the Volumetrics diet plan is a useful reference guide. If you want some hand-holding and personal support, Jenny Craig may be right for you.
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Keratin | A protein found in hair, nails and hooves. This animal-derived ingredient may be found in cosmetics. |
Kilojoule (Kj) | A metric term for the amount of energy produced when a food is burned in the body. |
Lacto | Prefix: relating to milk |
Lactose Intolerance | A person with this digestive condition has difficulty digesting foods that have lactose, the sugar found in milk and foods made with milk. If you have lactose intolerance, you may feel sick to your stomach after eating these foods. You may also have gas, diarrhea, and/or swelling in your stomach. Eating less food with lactose or using pills or drops to help you digest lactose usually helps. Aged and hard cheeses, fermented milk products (like yogurt), and lactose-free milk and milk products may be easier to digest. You may need to take a calcium supplement if you avoid milk and foods made with milk because they are the most common source of calcium for most people.
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Lard | A saturated fat obtained from pigs. |
LDL | See low-density lipoprotein.
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Lean Meat And Lean Poultry | Any meat or poultry that contains less than 10 g of fat, 4.5 g or less of saturated fats, and less than 95 mg of cholesterol per 100 g and per labeled serving size, based on USDA definitions for food label use. Examples include 95% lean cooked ground beef, beef top round steak or roast, beef tenderloin, pork top loin chop or roast, pork tenderloin, ham or turkey deli slices, skinless chicken breast, and skinless turkey breast. |