Studies have shown that replacing other sources of calories with whey protein, combined with weight lifting, can cause weight loss of about 8 pounds (35 kg) while increasing lean muscle mass. When to use whey protein powder for weight loss. Read the label: your body can only absorb up to 30 grams of protein at a time, says sarah mirkin, rdn, author of fill your plate, lose the weight, a 21-day weight loss plan for women over 40.
when to use whey protein powder for weight loss