MadSci Network: other |
I am somewhat confused by your question. I hope I understand your question. I believe that you want to know how much weight you need to gain or lose to maintain a body fat percentage of 21%. Weight Gain/Loss = (.21*weight - (percent fat*weight/100)) If the answer is positive you need to gain weight. If it is negative you need to lose it. This is assuming that all of your weight gain or loss is in fat. Admin addition: If the loss is in only lean then Weight Gain/Loss = (.79* weight - (100 - percent fat)/100 * weight)
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