50 Grams of Whey Protein Concentrate Based Formula Fortified with 25 Essential Vitamins and Minerals. A complete muscle and weight gaining formula: Because Big Max 50 contains 50 grams of protein, 25 vitamins & minerals, low sugar and grain derived carbohydrates, 4 grams of Pure flaxseed for essential fatty acids and 6 grams of fiber. You can drink it 2-3 times per day as an excellent high protein meal supplement.