Artificially Flavored1,220+ Calories Per Serving250 g + Carbs Per Serving40 g Protein Per ServingHigh-Calorie Weight Gainer6:1 Carbohydrate to Protein FormulaWeight Gain SupplementInformed Choice - We Test You TrustBanned Substance TestedSee Nutrition Information for Cholesterol ContentInstantized - Easy To MixGluten Free 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% 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 Tested facility. Streamlining and tightly controlling every phase of the process, from start to finish, enables us to offer premium products without the premium price. 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.  ^Per Serving. Values are naturally occurring & approximated.