10 Best Organic Whey Protein Isolate of 2025

Tested and Reviewed: Top 10 Organic Whey Protein Isolate deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Natural Force

Natural Force Grass Fed Organic Whey Protein Powder – Non GMO Verified, Humane Certified & Lab Tested for Toxins – Real Vanilla Flavor – Keto Friendly, Low Carb, and Kosher - 16 Ounce A2 Protein

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Editor's bottom line:

“This organic whey protein isolate is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Grass Fed Organic Whey Protein Powder The original Organic Grass Fed Whey is now stevia-free and sweetened only with organic Monk fruit! Impeccable quality, delicious taste, and USDA organic, grass-fed whey protein. No additives, sugar, fillers, or lecithin. It is a farm to shake experience that cant be beat!
Low Carb Keto Friendly Whey Protein Natural Force Organic Grass Fed Whey is certified Keto by the Paleo Foundation. Each scoop provides 20g of complete protein with only 110 calories and 3g total carbs
Eco Friendly Packaging & Sustainable Sourcing Our whey is sourced from heritage breed Jersey cows that graze on lush, coastal California grasses all year long. It is then packaged in a BPA-free recyclable pouch that uses 70% less plastic than standard tubs. Use the pull tab to on the front of the package to open. Do not cut!
Lab Tested for Quality & Purity - Every batch is produced in a certified cGMP facility and is 3rd-party lab tested for quality and purity. It is then certified by leading organizations such as USDA Organic, Project Non-GMO, OU Kosher, and American Humane
Nutrition You Can Trust - Natural Force values the health and happiness of our customers. If you have any questions, comments, or concerns, send us a message from your Amazon account and our world-class Customer Support team will help to make it right

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Picked by 397 people today

9.5

Nutricost

Nutricost Grass-Fed Whey Protein Isolate (Unflavored) 5LBS - rBGH Free, Non-GMO & Gluten Free

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Main Highlights

Grass-Fed Whey Protein Isolate
5LBS of Undenatured Grass-Fed Whey Protein Isolate Per Bottle
Unflavored (Natural flavor), Pure Whey Protein Isolate
rBGH Free, Non-GMO & Gluten Free
Made in a GMP Compliant, FDA Registered Facility

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9.5

NAKED

NAKED Whey Isolate Protein - Only 2 Ingredients, 30g Grass-Fed Protein, Zero Carb, Unflavored, Undenatured, Non-GMO, No Soy, Gluten-Free, No Preservatives - 28 Servings

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Main Highlights

ONLY TWO INGREDIENTS: Grass Fed Whey Protein Isolate and Sunflower Lecithin (to aid solubility). Naked Whey Isolate contains no artificial sweeteners, flavors, or colors and is GMO-Free, Soy Free and Gluten-Free.
NAKED MEANS NOTHING ARTIFICIAL: Our Unflavored Whey Protein Isolate Powder is sourced from happy, pasture-fed cows from select farms in the UK, Ireland and New Zealand. Growth hormone free - no rBGH or rBST, only 100% clean protein.
MAXIMUM NUTRITION, ZERO CARBS: A zero carb protein powder with 30g of Protein, 0g of Sugar, 120 Calories, and 8.4g of BCAAs (branched-chain amino acids) per serving. Less than 0.1g of lactose per serving for easy digestion.
CHEMICAL-FREE & ULTRA-FILTRATION: Manufactured by ion exchange and ultra-filtration techniques, generating an un-denatured, soluble whey protein. And, unlike most whey isolate protein powders, our iso protein powder has been made using careful manufacturing processes to retain essential amino acids. Zero contamination from chemical detergents - no acid or bleach.
THE PERFECT ISOLATE PROTEIN: Use our whey protein powder isolate to create the ultimate pre and post workout whey shakes, smoothies, and recipes. Use two scoops of our low carb protein powder to enjoy premium nutrition that take your workouts, gains, and recovery to new heights.

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9.2

Opportuniteas

Opportuniteas Grass Fed Whey Isolate Protein Powder – Unflavored, Heavy-Metal Tested, 28g Protein, Sourced from Ireland, Hormone-Free, Non-GMO, Packaged in USA – 1lb

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Main Highlights

CERTIFIED TRULY GRASS FED FROM IRELAND, PACKAGED IN THE USA Sourced from Irish dairy farms certified under the Truly Grass Fed program ensuring cows graze on open pastures for most of the year and are never treated with added hormones. Packaged in the USA to maintain freshness, traceability, and quality.
TESTED FOR HEAVY METALS AND QUALITY ASSURANCE - Every batch is lab-tested for heavy metals such as lead, arsenic, cadmium, and mercury. Verified for purity, potency, and protein content so you can trust whats in every scoop.
CLEAN INGREDIENTS, EASY TO DIGEST - Made with just two simple ingredients 99% whey protein isolate and less than 1% non-GMO sunflower lecithin for smooth mixing. No added sugar, flavors, gums, or preservatives. Naturally low-lactose and undenatured for easy digestion.
28G PROTEIN + 7.9G BCAAs + ALL 9 EAAs - Each serving delivers 28 grams of high-quality protein and 7.9 grams of naturally occurring BCAAs (leucine, isoleucine, valine) to support muscle growth, recovery, and performance.
TRANSPARENT BRAND WITH A PURPOSE - Opportuniteas focuses on clean nutrition, honest labeling, and sustainable sourcing. We donate 1% of sales to environmental nonprofits as part of the 1% for the Planet network.

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9.0

AGN Roots

AGN Roots Grass Fed Whey Protein Powder Isolate - Unflavored - Unsweetened - Certified Entire Life On Pasture - A Greener World - ASPCA Registered Brand List - Informed-Sport - 3lbs

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Main Highlights

Certified Grass Fed Whey Protein We do one thing, and do it well, provide Grass·Fed Whey with the assurances to back it up! AGN Roots is the only Truly Grass·Fed Whey Certified with Informed-Sport & Informed-Choice. Our farms are Certified Animal Welfare Approved by A Greener World - Globally recognized as the only "Entire Life on Pasture-based" Animal Welfare Certification.
A Greener World Certified AGN Roots Grass·Fed Whey Protein Powder unflavoured is sourced exclusively from Animal Welfare Approved Farms Certified by A Greener World, the Gold Standard of regenerative farming & humane food labels. Rest assured, your purchase is NOT supporting abusive CAFOs falsely marketing Whey as "grass-fed"; in fact, AGN Roots is the only Whey Protein Isolate recognized by the ASPCA's Shop with Your Heart Certified brand list!
Cold Processed & Undenatured AGN Roots Protein Powder Whey is cold-processed to ensure the highest naturally occurring & undenatured macro-nutrients. The moisture content varies around 5.4% due to carefully drying the Whey to preserve all nutrients (Competition is < 2%). Our protein is pouched fresh; it's fluffy and smells of fresh dairy cream.
AGN Roots Difference AGN Roots Grassfed Whey Protein Powder Isolate contains the highest natural concentration of BCAAs (6.5 grams) per 25 grams of protein compared to other so called grassfed whey competitors. By Supporting passionate farmers who foster a stress-free natural environment for their herds through their entire lives, you can reap the benefits of whey that contains 10% more BCAAs than the competition.
Best of the Bulks Weighing in at 3 lbs. (47 Servings) AGN Roots Grass Fed Whey Isolate Protein Powder Unflavored is more cost effective per serving than the other premium competition offering 5lb tubs; It will arrive in an air tight thermally protected pouch preventing heat & UV damage ensuring all micro-nutrients intact and limiting the carbon footprint of a giant plastic tub.

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8.8

Antler Farms

Antler Farms - 100% Grass Fed New Zealand Whey Protein Isolate, Unflavored, 2 lbs - Pure and Clean, 2 Ingredients, Delicious, Cold Processed

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Main Highlights

Antler Farms - 100% Grass Fed New Zealand Whey Protein Isolate, 2 lbs - Pure and Clean, Delicious, Cold Processed

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8.6

Transparent Labs

Transparent Labs Grass-Fed Whey Protein Isolate - Naturally Flavored, Gluten Free Whey Protein Powder with 28g of Protein per Serving & 9 Amino Acids - 30 Servings, Milk Chocolate

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Main Highlights

Naturally Flavored Clean Protein Powder: Made from naturally-fed, hormone-free whey, free of artificial sweeteners, food dyes, gluten, and preservatives. Transparent Labs 100% Grass-Fed Whey Protein Isolate is one of the cleanest proteins on the market.
28g of Protein Per Serving: Transparent Labs Whey Protein Isolate is sourced from 100% grass-fed, grass finished American dairy cattle. It contains one of the industrys highest protein-by-weight ratios, and packs 28g of protein per serving with minimal sugar or fat.
Enhance Recovery, Increase Strength: Transparent Labs 100% Grass-Fed Whey Protein Isolate gives you a highly bioavailable protein that is light on the stomach and goes down easily. This is the perfect protein for those who want to support recovery and promote muscle growth, while promoting overall health and longevity.
Contains All Nine Essential Amino Acids: Protein is made up of amino acids, which are the building blocks of muscle proteins. Depending on where your protein comes from, it will contain different amounts of the various building blocks. All of our protein powders contain all nine essential amino acids in a balanced ratio to support muscle protein synthesis, so you can trust that our protein powders will help you reach your muscle building and fitness goals.
Easily Digestible & Rapidly Absorbed: Theres nothing worse than the digestive discomfort often associated with trying to increase your protein intake. Our protein powder is designed with your digestive health in mind. No more bloating, gas, or digestive woes - just pure protein goodness that your body can readily utilize.

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8.3

Raw Organic Whey

Raw Grass Fed Whey Protein Powder – Unflavored, Only 1 Ingredient: 100% Pure Grass-Fed Whey from Happy, Healthy Cows – Undenatured, Non-GMO, Hormone-Free, Gluten-Free, Made in USA, 5LB

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Main Highlights

ONLY 1 INGREDIENT, NOTHING ELSE 100% pure grass-fed whey protein with no sweeteners, no flavors, no lecithin, no gums, and no additives. Just one clean, transparent ingredient you can trust.
SOURCED FROM HAPPY, HEALTHY GRASS-FED COWS Our grass-fed whey comes from pasture-raised cows on small American family farms. No rBGH/rBST, no antibiotics, and no GMO feed just clean, ethical dairy protein.
UNDENATURED & NUTRIENT-RICH WHEY PROTEIN Cold-filtered to preserve essential amino acids and nutrients. This clean protein is high in BCAAs and easy to digest ideal for post-workout recovery or daily fuel.
KETO-FRIENDLY, CLEAN LABEL PROTEIN Low carb, unflavored, gluten-free, and soy-free. No artificial ingredients, ever. Perfect for clean-eating lifestyles and high-protein, low-carb diets.
MADE IN THE USA, TRUSTED BY THOUSANDS Grass fed. Third-party tested. Packaged in BPA-free, resealable bags for freshness. Thousands rely on our whey protein for clean, simple nutrition.

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8.1

365 by Whole Foods Market

365 by Whole Foods Market, Whey Protein Isolate, Unflavored, 32 Ounce

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Main Highlights

Contains 32 ounces of whey protein isolate powder
Delivers 25g protein and 5g BCAAs per serving
Made with milk from cows not treated with rBST
Unflavored version for versatile use
NSF Certified for Sport

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8.1

Raw Organic Whey

Raw Organic Whey Protein Powder, Grass Fed, Happy Healthy Cows, Undenatured, Hormone Free, Non-GMO, Gluten Free, Unflavored, Unsweetened Protein, 5LB

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Main Highlights

RAW ORGANIC WHEY PROTEIN: 100% Organic Grass Fed whey protein powder from the milk of jersey cows that graze freely on lush, green pastures year round. These small-farm cows are not only healthier but we believe happier too!
3RD PARTY LAB TESTED: We're proud to be able to say that our whey protein powder is tested at 3rd party laboratories to ensure there are no contaminants. We test for heavy metals, antibiotics, pesticides, mycotoxins & melamine. Additionally, all of our packaging is BPA free.
HIGHEST QUALITY: Our organic whey protein powder is Grass Fed, USDA Organic, NON-GMO, Soy Free, rBGH/rBST Hormone Free, Gluten Free, Heavy Metal Free, Cold Processed
ONLY 1 INGREDIENT: Unflavored Organic Whey Protein Powder, No added sweeteners, preservatives or fillers. NO SOY lecithin & no sunflower lecithin. Processed WITHOUT acid or bleach.
LESS PROCESSED: Whey protein concentrate is the least processed form of whey, which means its loaded with high-quality complete protein and essential amino acids.
ORGANIC GRASS FED WHEY: Sourced 100% from US Sustainable Small Farms. Cow's diet consists of a variety of wild grasses and clover - producing milk rich in omega-3s and CLAs

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Our Best Overall Choice

Best Choice

9.7

Natural Force

Natural Force Grass Fed Organic Whey Protein Powder – Non GMO Verified, Humane Certified & Lab Tested for Toxins – Real Vanilla Flavor – Keto Friendly, Low Carb, and Kosher - 16 Ounce A2 Protein

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Grass Fed Organic Whey Protein Powder The original Organic Grass Fed Whey is now stevia-free and sweetened only with organic Monk fruit! Impeccable quality, delicious taste, and USDA organic, grass-fed whey protein. No additives, sugar, fillers, or lecithin. It is a farm to shake experience that cant be beat!
Low Carb Keto Friendly Whey Protein Natural Force Organic Grass Fed Whey is certified Keto by the Paleo Foundation. Each scoop provides 20g of complete protein with only 110 calories and 3g total carbs
Eco Friendly Packaging & Sustainable Sourcing Our whey is sourced from heritage breed Jersey cows that graze on lush, coastal California grasses all year long. It is then packaged in a BPA-free recyclable pouch that uses 70% less plastic than standard tubs. Use the pull tab to on the front of the package to open. Do not cut!
Lab Tested for Quality & Purity - Every batch is produced in a certified cGMP facility and is 3rd-party lab tested for quality and purity. It is then certified by leading organizations such as USDA Organic, Project Non-GMO, OU Kosher, and American Humane
Nutrition You Can Trust - Natural Force values the health and happiness of our customers. If you have any questions, comments, or concerns, send us a message from your Amazon account and our world-class Customer Support team will help to make it right

Show Price

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