Grass Fed - Chocolate or Vanilla - 1, 3 & 6 Pound Sizes | LifeSource Vitamins
LifeSource Vitamins Grass-Fed Whey Protein Isolate delivers a premium, fast-absorbing protein sourced from 100% grass-fed, pasture-raised cattle. Each serving provides 25 g of high-quality whey isolate, naturally rich in BCAAs and glutamine, to help support daily protein needs, post-workout recovery, and active lifestyle wellness.*
Gently cold-processed and crafted in FDA-registered, GMP-certified facilities, this formula is independently 3rd-party tested for purity, potency, and label accuracy.*
Research-Informed Wellness Support
We believe in transparency and science-informed wellness. Below you’ll find selected human studies available through the National Institutes of Health (NIH) via PubMed.
Wellness Support Backed by Human Research
• Supports post-workout recovery* — High-quality whey protein supplies essential amino acids that help replenish muscles after exercise.
• Supports daily protein needs and active lifestyle wellness* — Convenient way to help meet higher protein requirements.
• Provides a rich source of BCAAs and glutamine* — Naturally occurring branched-chain amino acids and glutamine support overall protein nutrition.
• Supports lean muscle maintenance with training* — Protein helps preserve lean mass when combined with resistance exercise.
Additional Wellness Support
• 25 g grass-fed whey isolate per serving.*
• Clean, fast-absorbing formula with minimal lactose.*
Why Customers Love This Formula
- Premium grass-fed whey isolate — 25 g protein per serving*
- Supports post-workout recovery and daily protein goals*
- Naturally rich in BCAAs and glutamine*
- Great-tasting, easy-to-mix formula
- 3rd-party tested for purity and potency
Independently 3rd-Party Tested
Identity • Purity • Potency • Label Accuracy
Produced in FDA-registered, GMP-certified facilities.
See Our Testing Results →
Recommended Reading on Sports & Recovery
Frequently Asked Questions
How do I use it?
Mix 1 scoop with 6–8 oz cold water or milk. Ideal post-workout or to help meet daily protein goals.
Is this suitable for daily use?
Yes — excellent clean protein for active lifestyles and everyday wellness.*
When might I notice benefits?
Many customers report feeling better supported in their recovery and daily energy with consistent use.*
LifeSource Vitamins — Proudly American — Since 1992
*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. Always consult your physician before taking any supplements.
LifeSource Vitamins Grass-Fed Whey Protein Isolate supports muscle recovery, strength, and healthy aging with 25g protein per serving. Third-Party Tested for Purity & Quality.*
Have questions? Call us at 800.567.8122 or email info@lifesourcevitamins.com
