Can protein shakes help weight loss, or just bulking?

Muscle building: Muscle are composed of protein, so when stimulating muscle growth through weight lifting, it is essential to have protein in your diet. This can be real food, or supplements. Protein shakes can be meal replacements as well. Weight loss is from decreasing your caloric consumption.

Should not use: I disagree.Any normal diet contains more than enough protein for proper weight training. I would like to see research supporting any benefit of supplements.Current studies show very little if any benefit. Risks include heart attacks, hypertnsion, strokes and kidney problems.In diet usage there is also risk of serious problems.