LifeSource Vitamins Grass-Fed Whey Protein Isolate — Chocolate or Vanilla, 1, 3 & 6 lb Sizes
LifeSource Vitamins Grass-Fed Whey Protein Isolate delivers 25 g of premium, fast-absorbing whey protein sourced from 100% grass-fed, pasture-raised cattle. Naturally rich in BCAAs and glutamine, this clean formula supports muscle recovery, lean muscle maintenance, and active lifestyle wellness in one great-tasting scoop.*
- Delivers 25 g premium grass-fed whey protein isolate per serving*
- Supports muscle recovery and lean muscle maintenance*
- Naturally rich in BCAAs and glutamine*
- Convenient high-quality protein for active lifestyles*
✅ Family-Owned Since 1992
✅ Made in the USA
✅ Third-Party Tested
⭐ Trusted by customers nationwide with over 7,000 5-star reviews
Who May Benefit Most
- Active adults and athletes seeking premium grass-fed protein*
- Those looking to support muscle recovery and lean muscle maintenance*
- Individuals wanting clean, high-quality whey with minimal additives*
- People who prefer great-tasting chocolate or vanilla protein*
Key Ingredients
- Grass-Fed Whey Protein Isolate — 25 g premium protein per serving*
- Naturally Occurring Branched-Chain Amino Acids (BCAAs)*
- Naturally Occurring Glutamine & Essential Amino Acids*
Independently 3rd-Party Tested
Identity • Purity • Potency • Label Accuracy
Produced in FDA-registered, GMP-certified facilities.
See Our 3rd Party Testing →
Why Trust LifeSource Vitamins?
- Family-Owned and Operated Since 1992
- Serving Customers Nationwide Since 1992
- More Than 7,000 Verified 5-Star Reviews (4.8–4.9 average)
- Made in the USA in FDA-registered, GMP-certified facilities
- Independently Third-Party Tested for Identity, Purity, Potency & Label Accuracy
- Non-GMO • Gluten-Free • Family-Owned Company
Our Quality Promise
Since 1992, LifeSource Vitamins has remained committed to providing high-quality supplements made with carefully selected ingredients and rigorously tested for identity, purity, potency, and label accuracy. As a family-owned company, we believe you deserve transparency, consistency, and products you can trust to support your wellness goals.
Wellness Research Highlights
Key research highlighting the role of this ingredient in supporting wellness.*
✓ Supports muscle recovery* — Grass-fed whey protein is included to help support muscle recovery after exercise. Research reviewed by the National Institutes of Health (NIH) has evaluated whey protein for its role in supporting muscle recovery and maintenance.
✓ Supports lean muscle maintenance* — High-quality whey protein helps meet daily protein needs for active lifestyles. Research reviewed by the National Institutes of Health (NIH) has evaluated whey protein for its role in muscle maintenance.
Suggested Use
Mix 1 scoop with 6–8 oz of cold water or milk. Shake or blend well. Ideal post-workout, as a snack, or to help meet daily protein goals.*
Product Specifications
• Serving Size: 1 Scoop • Protein: 25 g per serving
• Flavors: Chocolate or Vanilla • Available Sizes: 1 lb, 3 lb, 6 lb
• Grass-Fed • Non-GMO • Gluten-Free
Customer Reviews
This product is backed by LifeSource Vitamins' commitment to quality and customer satisfaction, supported by over 7,000 five-star reviews across our product catalog.
— Verified LifeSource customers.
Frequently Asked Questions
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What makes whey isolate different? Whey isolate undergoes additional filtration to provide a high concentration of protein while remaining naturally rich in essential amino acids, BCAAs, and glutamine.*
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Is it grass-fed? Yes — sourced from 100% grass-fed, pasture-raised cattle.
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Is it third-party tested? Yes — every batch is independently verified for identity, potency, and purity.*
Often Paired With
Recommended Reading
- Protein Powders for Everyday Health: Benefits Beyond the Gym → Read Article
LifeSource Vitamins — Proudly American — Since 1992
Have questions? Call us at 800.567.8122 or email info@lifesourcevitamins.com
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
LifeSource Vitamins Grass-Fed Whey Protein Isolate supports muscle recovery and lean muscle maintenance. Family-Owned Since 1992, 3rd-Party Tested.*
