NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, Increase Muscle Mass, Full Spectrum Amino Acid - Vanilla, 6 Pound
NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, Increase Muscle Mass, Full Spectrum Amino Acid - Vanilla, 6 Pound
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NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, Increase Muscle Mass, Full Spectrum Amino Acid - Vanilla, 6 Pound

NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, Increase Muscle Mass, Full Spectrum Amino Acid - Vanilla, 6 PoundNutraBio Kosher Extreme Mass Weight Gainer Vanilla Dairy 6 LBNutraBio Kosher Extreme Mass Weight Gainer Chocolate Dairy 6 LBNutraBio Extreme Mass 53G Protein Advanced Anabolic Muscle Mass Gainer Protein High Calorie Full Spectrum Amino Acid Strawberry Pastry 6 Pound

Key item features

  • ‌Mass Gainer Protein Blend – Extreme Mass combines high-grade WPC80 (Whey Protein Concentrate) and Micellar Casein for optimal lean muscle growth. This potent blend offers a superior amino acid profile to support nitrogen retention and muscle recovery.
  • Nutrient-Rich Mass Builder – Ideal for serious athletes and bodybuilders, Extreme Mass delivers the essential nutrients needed for muscle mass and weight gain. Packed with healthy fats, fiber, complex carbs, and key vitamins, it fuels your body's growth potential.
  • High-Calorie Protein for Weight Gain – With 53g of protein, 99g of carbs, and only 6g of fat per serving, Extreme Mass supercharges your macros.
  • Premium Quality Ingredients – NutraBio ensures top-tier quality with Extreme Mass, a high-calorie protein powder that is gluten-free, soy-free, vegetarian, third-party tested, certified kosher and halal, and proudly made in the USA.
  • Lab-Tested & Transparent – Extreme Mass, like all NutraBio products, is third-party tested for purity and potency. With a fully transparent label and no proprietary blends, you know exactly what you're consuming.
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4.9 out of 5 stars
stars43 ratings41 reviews
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  1. 5 stars93% (40)
  2. 4 stars5% (2)
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Showing 1-3 of 41 reviews

Mar 23, 2026
Paul P.
5 out of 5 stars review

Seller Verified Purchase

40M Ectomorph that has been struggling to gain good healthy weight here. Started taking NutraBio Extreme Mass 10 weeks ago and I already gained 20lbs of healthy weight along with (slightly) improved diet and exercising. Tried dozens of different weight gainers and this one is so far my favorite that has shown best results. Great quality product that mixes well even without using a blender, has good taste (I think very important to be able to drink regularly/daily) - I will be adding this to my daily shake going forward. Vanilla flavor seems to be most versatile for mixing with variety of ingredients (e. g. oats, peanut butter, honey, etc. ) but all three flavors are great.

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Apr 22, 2026
Wyatt P.
5 out of 5 stars review

Seller Verified Purchase

I didn't like the taste as much as my previous protein, but what I do trust is Joseph Pircher. He trusts nutrabio and since they do 3rd party testing and the products are demonstrably high quality, I'll continue to use their products. I prefer results over taste lol.

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Sep 5, 2025
Stephen
5 out of 5 stars review

Seller Verified Purchase

Totally happy!

I took Creatine + Extreme Mass for six months while lifting every other day and added 25lbs. of muscle. I could have done better if I had been more diligent with my lifting, but I slacked off. I went from 180 to 205 and gained one inch in my waist (36"). That wouldn't have happened if I had worked harder lifting. I'll keep the same routine going forward with my ultimate goal of 10 more pounds. By the way I'm 75 years old and ripped.

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