Rule 1 Mass Gainer
By Rule 1
Rule 1 Mass Gainer
- 40g all-whey protein per serving
- Over 1,220 calories per serving
- 250g+ complex carb blend
- Informed Choice Certified – regularly tested for banned substances by LGC, a world-class sports anti-doping lab
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*USA Only. Excludes: AK, HI, orders above 25lbs and bulk orders.
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5.5lbs Chocolate Fudge
Servings Per Container: 8
† Daily Value (DV) not established.
Rule 1 Proteins' High-Calorie Weight Gainer
With over 1,220 calories, 250g of blended carbs, and 40g of all-whey protein in every serving, Mass Gainer is designed to fuel fast metabolisms and help hard gainers add mass.*
Calories, Protein, & More
Building mass requires consuming more calories than are burned, and quality mass demands attention to the nutritional composition of those calories. Mass Gainer delivers the complete package with premium all-whey proteins for recovery, fast-digesting carbs for energy, and creatine monohydrate to support size and strength gains.^
Anytime Formula
Mass Gainer should be used alongside regular meals—not as a replacement—to support daily calorie goals. For best results, combine with a nutrient-dense diet and consistent resistance training.
Clean Manufacturing & Quality
Mass Gainer is crafted in Rule 1's state-of-the-art, GMP-certified facility in the USA using premium globally sourced ingredients. It's rigorously tested for banned substances and certified by Informed Choice.
About The Brand
Rule 1 Proteins is more than just a supplement brand. With over a decade of experience in sports nutrition, Rule 1 manufactures all products in its state-of-the-art facility using premium globally sourced ingredients to deliver consistent, top-quality results in every scoop. No shortcuts, no compromises—just products designed to help athletes and fitness enthusiasts perform at their best.
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