New Delhi, April 24 -- Protein powders and supplements make for a convenient nutrient boost for muscle repair, growth and general health. However, not all of them are created equal, and as a recent study has shown, 36 brands of protein powders, including herbal and dietary supplements, have either been mislabelled or contaminated by toxins. So awareness is necessary. Understanding the content and quality of a protein powder is not just a suggestion; it's a necessity. The label should clearly state the protein amount per serving, typically 20 to 30 grams, for a quality product. Equally important is the protein source. Complete proteins that contain all essential amino acids are the best choice. Common sources include whey, casein, egg albumi...