Artificially Flavored1,220+ Calories Per Serving250g + Carbs Per Serving40 g Protein Per ServingHigh-Calorie Weight Gainer6:1 Carbohydrate to Protein FormulaWeight Gain SupplementInformed Choice - We Test You TrustBanned Substance TestedGluten FreeCarb10® Better Input = Better Output The premise for R1 MASS GAINER™ is simple: to be MASSIVE, you need to go MASSIVE. With more than 1,220 calories, a 250g+ complex carb blend, and 40 grams of protein from three types of whey, this calorie-packed formula provides a 6:1 carb to protein ratio plus over 9 grams of naturally occurring BCAAs & added creatine monohydrate to help fuel your workouts & add size quickly. Naturally Occurring Amino Acid Profile^ Essential Amino AcidsLeucine, Lysine, Phenylalanine, Isoleucine, Valine, Methionine, Histidine, Tryptophan, Threonine46%Conditionally Essential Amino AcidsArginine, Cystine, Glutamine & Glutamic Acid, Tyrosine, Glycine, Proline33%Non-Essential Amino AcidsAspartic Acid, Alanine, Serine21%R1 Quality Guarantee - Rule One Proteins™ Commitment To Quality Since day one, Rule 1 Proteins™ has proven that exceptional quality and superior value aren't mutually exclusive. We develop our own products, source the finest ingredients, and manufacture them in an FDA-inspected, GMP-compliant, and Banned Substance Free facility. Streamlining and tightly controlling every phase of the process, from start to finish, enables us to offer premium products without the premium price. Informed Choice; We Test You Trust - Banned Substance Tested  Informed Choice® is a quality assurance program for nutritional supplements. The program certifies products exhibiting the Informed Choice logo have been regularly tested for banned substances by the world class sports anti-doping lab, LGC. Instantized - Easy To Mix: Small amounts of lecithin are added as an emulsifier to help with mixing. ^Per Serving. Values are naturally occurring & approximated.