MuscleMeds Carnivor Beef Protein Isolate Review
Carnivor Beef Protein Isolate is presented by MuscleMeds as a 100% beef protein isolate powder that delivers the muscle-building power of beef with higher levels of amino acids than other protein sources used in supplements, including whey, soy, milk and egg. The page states that the product is 350% more concentrated in anabolic muscle building aminos than a prime sirloin steak. It lists 23g of beef protein isolate per serving, 0g of fat and 0g of sugar, and describes the powder as sugar-free, fat-free, lactose-free, gluten-free and cholesterol-free. The page also says it is one of the most delicious protein shakes a buyer will try. A fact box on the page notes that nearly 70% of the global population is intolerant to lactose, and that milk proteins such as whey and casein contain lactose that is poorly digested by most people, which can cause stomach distress and bloating. The product is positioned as an alternative to whey that avoids that lactose and dairy content while still giving high-quality protein for building muscle. A clinical section describes a research study in which hard training male athletes supplementing with Carnivor BPI gained an average of 7.7 lbs of muscle mass in 8 weeks, a 6.4% average increase in lean body mass, compared with a placebo group that gained 0.7 lbs of lean mass from baseline. The same study reported that the Carnivor group increased their combined bench press and deadlift one-rep max by 147.7 lbs, while the placebo group increased total strength by 82.6 lbs. The page presents these findings as validating the muscle and strength building effects of Carnivor. The product is sold in 2 lb (28 servings), 4 lb (56 servings) and 8 lb (100 servings) sizes, with flavours including Fruity Cereal, Rocket Pop, Chocolate Peanut Butter, Chocolate, Vanilla Caramel, Cookies and Cream, Cinnamon Toast Cereal, Strawberry, Fruit Punch and Chocolate Fudge. The listed price is $45.99 for the 2 lb size, with a VIP member price of $41.39 and an MSRP of $61.20. The page also cites research references on beef, creatine, ammonia metabolism and alpha-ketoglutarate, and links to related MuscleMeds products including Carnivor Mass, Carnivor 8 lb bag and Creatine Decanate.
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Study, Trial or Testing Result Summary
Members Only10 human studies · 5 improved
This product gives 23 grams of beef protein isolate per serving, which is a full dose; studies used 20 to 46 grams. A review that pooled seven trials with 270 people found that beef protein taken alongside exercise built about as much lean mass as whey protein, and more lean mass and leg strength than taking no protein [1]. In 41 adults doing weight training for 8 weeks, beef protein isolate after workouts increased lean mass more than a carbohydrate drink, though strength gains were similar [2]. In 24 active men, 20 grams a day for 8 weeks increased lean mass and upper body muscle size, with strength gains similar to whey or carbohydrate [3]. In older male triathletes, the same dose helped keep thigh muscle thickness, which fell in the whey and carbohydrate groups [4]. In six elite triathletes, thigh muscle size grew about 3 percent more than with carbohydrate [5]. Not every trial agreed: one 8 week trial in 27 adults found no difference from carbohydrate or whey [6]. Overall, beef protein appears to support muscle gains about as well as whey, with less clear effects on strength. Animal and cell studies are never counted.
See all 10 studies →Hide the studies
- Across seven trials with 270 people, beef protein with exercise gave similar lean mass gains to whey and more lean mass and leg strength than no protein.Does Beef Protein Supplementation Improve Body Composition and Exercise Performance? A Systematic Review and Meta-Analys…
- In four small trials with 100 people, insect protein supported muscle building about as well as animal protein, and beef was only one comparison with cricket protein, so it says little about beef itself.Insect Protein to Support Human Skeletal Muscle Anabolism: A Systematic Review of Randomised Controlled Trials.
- This review of edible insects found cricket protein raised blood amino acids more than beef did, but it did not test beef protein for muscle building.Can edible insects be a nutritional option for people with special protein requirements? A systematic review.
- In 41 men and women doing resistance training for 8 weeks, 46 g of beef protein isolate after workouts increased lean mass and strength, unlike the carbohydrate control for lean mass, with strength gains similar across groups.The Effects of Beef, Chicken, or Whey Protein After Workout on Body Composition and Muscle Performance.
- In 27 active men and women over 8 weeks of resistance training, 20 g daily of hydrolyzed beef protein did not change training results or body composition differently from carbohydrate or whey.Effects of protein-carbohydrate supplementation on immunity and resistance training outcomes: a double-blind, randomized…
- In 24 active men doing 8 weeks of resistance training, 20 g daily of hydrolyzed beef protein increased fat-free mass and upper body muscle size, with strength gains similar to whey or carbohydrate.Carbohydrates Alone or Mixing With Beef or Whey Protein Promote Similar Training Outcomes in Resistance Training Males: …
- In 24 male master triathletes over 10 weeks, 20 g daily of hydrolyzed beef protein helped preserve thigh muscle thickness, while thickness fell in the whey and carbohydrate groups.Effects of Supplementation with Beef or Whey Protein Versus Carbohydrate in Master Triathletes.
- In 12 young men after one workout, 30 g of beef protein raised muscle protein building over 5 hours about as much as milk, though milk was stronger in the first 2 hours.Differences in postprandial protein handling after beef compared with milk ingestion during postexercise recovery: a ran…
- In six elite male triathletes, 25 g of beef protein daily for 8 weeks increased thigh muscle cross-sectional area by about 3% more than a carbohydrate drink, with no difference in body mass or skinfold thickness.Effects of Beef Protein Supplementation in Male Elite Triathletes: A Randomized, Controlled, Double-Blind, Cross-Over St…
- In 12 older adults over a single 9-hour test day, the type of breakfast (egg-based or cereal-based) did not change muscle protein synthesis, even though a standard lunch centered on beef protein was given to both groups.Quality of meal protein determines anabolic response in older adults.
Review Totals and Summary
Members Only4,800 reviews · 85% positive
MuscleMeds Carnivor Beef Protein Isolate is overwhelmingly well-received by customers, boasting approximately 4800 ratings across various stores, with 93% giving it 4 or 5 stars. Buyers generally praise its effectiveness, taste, and high-quality composition. **What it did for them** Many users report positive physical outcomes from using this protein. Customers note improvements in muscle development, strength, and energy levels. Some also found it beneficial for post-workout recovery. One reviewer stated it "packs on the muscle," while another found it "gives me strength and energy to lift weights." Others simply noted "good results" and "the power it gives is great." **What they complain about** The most common complaint revolves around mixing difficulties. Several users found the powder challenging to dissolve, especially without an electric mixer, with one saying it's "hard to mix, need soaking for a few minutes." Another reviewer found it "impossible to mix with water." A minor concern for one customer was the presence of a "red die," though they noted it was "a very small amount." Specific flavor preferences also led to some complaints, with "vanilla has a poor taste" and "don’t really like the taste of cookies and cream." **Taste and Form** Despite some specific flavor dislikes, the overall consensus on taste is highly positive. Many describe the flavors as "amazing," "great," or "best tasting protein ever." Popular flavors mentioned include chocolate, which is often described as "amazing and acceptable," and cinnamon toast, which was "good but could be a little more flavorful." The product is noted for being "very powdery(talcum)," which some found made it blend "super smooth, with little to no chunks." **Value for Money** Customers generally perceive MuscleMeds Carnivor Beef Protein Isolate as good value. They appreciate the quality of the ingredients and the amount provided for the price. Reviewers mentioned it's a "great protein supplement to my diet" and "suitable for its price." Many highlighted its "high quality" and "excellent ingredients," making it a worthwhile purchase. **Who it suits and who it did not** This protein isolate appears particularly well-suited for individuals who experience digestive issues with traditional whey protein or dairy products, with one user stating, "I can’t have milk products." It also appeals to those on specific diets, such as carnivore, or those who have undergone gastric bypass surgery, as one reviewer noted, "didn't like taste" of other proteins but found this one "Best Tasting." Its low carb and zero fat profile also makes it attractive to those monitoring their macros. While most find it beneficial, one user couldn't tell if it was causing bloating, and those who prioritize easy, on-the-go mixing might find it less convenient.
Biohacker Summary
Members Only2 of 10 recommend it
Four of the ten panelists spoke about beef protein, the main ingredient, and their views are mixed but lean positive. One recommends it as a top protein for digestibility and for building muscle with age, and says it absorbs faster than milk protein, so he suggests pairing it with whey after a workout. Another would choose it over chicken protein or rice protein if it is free of glyphosate and other chemicals, and one has used a couple of tablespoons in a waffle batter and also called the hydrolyzed form fine for smoothies on a strict anti-inflammatory diet. The cautions are about quality: one warns to pick grass-fed, hormone-free, low heavy metal, cleanly processed products because the isolate concentrates whatever is in the cattle, and another warns that some past products were mostly collagen from hoof and hide with added amino acids, and that a shake is not the same as eating a steak. One more panelist only noted that beef protein powders are becoming popular, and no one said they stopped using it.
See all 4 biohackers →Hide the biohackers
Ben Greenfield · Beef Protein · warns
- Warns that beef protein isolate concentrates whatever is in the cattle, so it's important to source grass-fed with no added hormones, verified low heavy metals, and clean processing.
- States that hydrolyzed beef protein is totally compliant for use in smoothies on the AIP diet.
- Uses about two tablespoons of beef protein powder in her waffle recipe to make the batter thick.
- He recommends Roots Nutrition's Paleo Protein Superfood, describing it as clean, whole food-based, packed with greens, electrolytes, and fiber, and tasting like banana bread.
Thomas DeLauer · Beef Protein · recommends
- Recommends beef protein as one of the top proteins based on the DASS score for digestibility, important for muscle building as people age.
- Warns to be cautious about beef proteins on the market, as many in the past were essentially collagen (hoof and hide) with added amino acids to artificially increase the protein count on the label.
- Discusses a study comparing beef protein to milk protein, finding that beef was more rapidly absorbed and digested, leading to similar mTOR C1 increases but slower muscle protein synthesis over 5 hours compared to milk protein's early spike.
- States that beef protein absorbs more rapidly than milk protein and recommends combining it with whey protein after a workout for sustained amino acid release.
- Warns that a beef protein shake is not the same as eating a steak, because the synergy of fats, fibers, collagens, and micronutrients in whole steak is designed to be together.
- Advises caution with beef protein powders, noting that many use hooves and hides, resulting in an incomplete protein that doesn't count towards the recommended daily allowance for protein.
- Says that out of the powders, the Ancient Minerals Keto Protein bone broth protein is the winner because it was more functional and higher quality with organic ingredients.
- Recommends looking for complete proteins like hydrolyzed beef protein on labels.
- Warns against beef protein powders, calling them a joke because they are not made from powdered beef but from ground-up hooves and snout with added cheap amino acids to make an incomplete protein seem complete.
- Strongly warns against buying beef hydrolyzed protein, calling it "garbage" and "not even real," explaining that it's made from butchering byproducts like tendons and hooves with added amino acids to falsely appear as a complete protein.
Dave Asprey · Beef Protein · uses
- Dave Asprey, as a biology guy, would rather eat beef protein derived from rice than rice protein, as long as it doesn't have glyphosate or other chemicals.
- States that if you can afford beef protein, it is a superior source than chicken protein.
Dr. Mark Hyman · Beef Protein · neutral
- Mentions new animal protein powders like beef, collagen, and whey protein that people are using.
RAL Summary
Members OnlyTier 2 for Muscle and Strength
A pooled review of seven trials with 270 people found beef protein with exercise built more lean mass than no protein and about as much as whey, backed by several smaller trials, and 97% of 514 reviews are positive.
Where the evidence disagrees: 4 of the 10 human studies found no effect.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Muscular system, Digestive system
Combine with: To further enhance muscle building and recovery, consider stacking Carnivor Beef Protein Isolate with creatine monohydrate, which is well-researched for its ability to improve strength and power output. Adding a high-quality carbohydrate source post-workout can help replenish glycogen stores and optimize protein absorption. For overall performance and recovery, omega-3 fatty acids can help manage exercise-induced inflammation, while a comprehensive multivitamin ensures you're meeting all micronutrient needs essential for muscle growth and repair.
Possible side effects: No side effects were reported in the studies; one reviewer was unsure whether it caused bloating, while others said it was easier on the stomach than whey.
Supplement Facts
Sugars 0 g · Potassium 65 mg
| Calories | 120 | |
| Total Fat | 0 g | 0% |
| Cholesterol | 0 mg | 0% |
| Total Carbohydrate | 6 g | 2% |
| Sugars | 0 g | † |
| Protein | 23 g | 46% |
| Sodium | 340 mg | 15% |
| Potassium | 65 mg | 1% |
Other ingredients: Ingredients: CARNIVOR-BPI [Hydrolyzed Beef Protein Isolate, Anabolic Nitrogen Retention Technology™ Intermediates: GKG (Glutamine-Alpha-Ketoglutarate), OKG (Ornithine-Alpha-Ketoglutarate), AKG (Alpha-Ketoglutarate) and KIC (Alpha-Ketoisocaproate)], Maltodextrin, Natural and Artificial Flavor, Salt, Silica, Acesulfame Potassium, Sucralose, Antifoam (Propylene Glycol Mono - and Diesters of Fats and Fatty Acids, Mono Glyceride of Fatty Acid, Polyglycerol Oleate, RDB Soybean Oil, Dimethylpolysiloxane, Hydrophobic Silica, Polysorbate 60K, Sorbitan Monostearate, Contains less than 2% of Paraffin). Contains bioengineered food ingredients.
Directions: Directions: For a delicious protein shake, mix 1 scoop of CARNIVOR with 6-8 fl. oz. of cold water in a shaker bottle.
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Graded October 26, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.
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