The High Energy 20 g Protein Per Serving Accelerated Weight Loss Increased Metabolic Rate Sustained Energy Enhanced Mood Controlled Cravings Naturally Flavored Dietary Supplement High-quality protein to help fuel lean, sexy muscle, plus a fat burner! The new High Energy Fat Burning Proteins from Zantrex are designed to help offer accelerated weight loss, increased metabolic rate, sustained energy, enhanced mood, and controlled cravings. You get 20 grams of protein packed into just 150 calories.