Proven Grassfed Beef Liver

Each serving is 4 capsules providing 3000mg of desiccated (dried and defatted) grass-fed, pasture-raised beef liver plus BioPerine (black pepper extract) for enhanced absorption. Beef liver naturally contains heme iron, Vitamin B12, Vitamin A, copper, riboflavin, folate, and CoQ10 in highly bioavailable forms. This is a whole-food micronutrient supplement, not a protein powder. Its value is nutrient density, not protein quantity.

Absolutely! Its natural growth factors and complete proteins make it ideal for boosting stamina, recovery, and muscle-building efforts.

PROVEN Grassfed Beef Liver is made from high-quality, grass-fed cattle to ensure premium purity and nutrient density.

You can, but be mindful of Vitamin A and iron stacking. Both beef liver and Anavite contain preformed Vitamin A and iron. Check the Anavite label for the Vitamin A amount and add it to what you are getting from the beef liver capsules to ensure your combined daily total stays below 3000mcg RAE for Vitamin A and 45mg for iron. If you are unsure of the combined amounts, take them on alternating days or consult a healthcare professional.

Follow the recommended dosage on the packaging or as advised by your nutritionist for optimal results.

Yes, it is made from pure, grass-fed beef liver without any additives, ensuring a clean and natural product.

Beef liver is one of the richest natural sources of heme iron, which is absorbed 2 to 3 times more efficiently than non-heme iron found in plant foods and most iron supplements. Heme iron also does not cause the constipation and nausea common with standard iron tablets. However, if you have a diagnosed deficiency, work with your doctor on dosing. Desiccated liver capsules provide supplemental iron, not therapeutic iron replacement doses.

Yes. The capsules contain desiccated beef liver in gelatin capsules, both of which are animal-derived. There are no plant-based fillers, binders, or flow agents listed. The BioPerine (black pepper extract) is the only plant-derived ingredient. If strict carnivore compliance requires eliminating all plant compounds, that one ingredient is the consideration. For most carnivore dieters, this product fits within the framework.

BioPerine is a patented black pepper extract standardized to 95% piperine. It has been shown to increase absorption of various nutrients by improving intestinal permeability and slowing liver metabolism of certain compounds. In a beef liver supplement, it helps your body absorb more of the naturally occurring iron, B12, and other micronutrients per capsule. Most competing beef liver products do not include an absorption enhancer, making this a genuine differentiator.