Title: PROTEIN POWER , By: Clark, Nancy, American Fitness, 08935238, Jul/Aug97, Vol. 15, Issue 4
Database: Health Source - Consumer Edition
Section: NUTRITION
PROTEIN POWER
How much protein do you really need?
Protein needs vary, depending on whether you are building muscle, dieting (a calorie deficiency increases protein needs), growing (such as teenage athletes) or doing exhaustive exercise. Protein needs for athletes should be calculated according to appropriate body weight--not by percent of calories. Appropriate protein targets include the following.
For example, if you weigh 160 pounds and want a high but acceptable protein intake (0.9 grams protein per pound), you'd need 144 grams of protein--an amount you could easily consume from one quart of skim milk, one can of tuna and eight ounces of chicken breast.
If you include dairy foods, poultry, fish, meat, eggs or any other animal-based food in your diet, you'll get the essential amino acids you need. Vegetarians can get all eight essential amino acids from tofu, veggie burgers, soy milk or any other soy product. Or, they can eat a variety of beans, lentils, nuts, sunflower seeds, grains and other plant foods that offer complementary amino acids.
Few athletes need to spend money on a protein supplement. Even vegetarians can get enough protein through foods. I recommend commercial protein supplements only in a few medical situations, such as for malnourished patients with AIDS or cancer. Protein supplements are also helpful for my clients with anorexia who claim to be vegetarian (a politically correct way of eliminating a source of calories from their diets). For example, one "vegetarian" student refused to eat animal products, and also disliked tofu and beans. Her only acceptable source of protein was a fat-free protein supplement. This case contrasts to the 160-pound protein-aholic who eats a six-egg white omelet for breakfast, a can of tuna for lunch, two chicken breasts for dinner, and drinks skim milk by the quart. His calories total more than 160 grams of high-quality protein a day--and he wonders if he needs a supplement. He's already getting more than one gram of protein per pound of body weight. He needs more carbohydrates for optimal muscle fueling, not more protein.
Grams protein per
Description pound body weight
Current RDA for a sedentary adult 0.4
Recreational exerciser, adult 0.5-0.75
Competitive athlete, adult 0.6-0.9
Growing teenage athlete 0.8-0.9
Novice adult building muscle mass 0.7-0.9
Athlete restricting calories 0.8-0.9
Maximum usable amount by adults 0.9