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The figure I was given to help my nutritional counseling clients was a person's weight multiplied by .4536 divided by 2 will equal the number of grams per day protein needed for optimum health. For a person who is morbidly obese, choose the highest end of a healthy weight range for this calculation. (pounds converted into kilograms multiplied by .5 = grams of protein)

For example; a woman weighing 135 pounds should eat about 31 grams of protein each day. (135 x .4536 x .5 = 30.61)

I will add that the World Health Organization recommends the multiplier be between .45 minimum (for sedentary individuals) and .8 (very active). The US RDA sets the range between .66 and .8 with pregnant and lactating women at .88 to 1.1. This would make that same 135 pound woman eating somewhere between 26 and 49 grams, depending on her activity level. If she were pregnant or nursing, that number would increase to as high as 67 grams.

A warning here; many protein supplements are not entirely usable in the human body. Be wary of protein powders (and even more the sales representatives that are pushing them) that encourage massive doses. These will most likely NOT be bioavailable and worse, will actually cause serious stress to your kidneys.

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16y ago

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