Beef protein isolate is a protein powder made from beef, usually broken down (hydrolyzed). It is marketed as a dairy-free alternative to whey protein.
Also known as: beef protein isolate, hydrolyzed beef protein, beef protein powder.
An 8-week training trial used 20 g a day (Naclerio 2017). These are study protocols, not a recommendation.
The NIH Dietary Supplement Label Database lists beef protein products such as Beef Protein Isolate Powder from BulkSupplements.com as a dietary supplement. Under the 1994 dietary supplement law (DSHEA), FDA does not approve dietary supplements before they are marketed, and the maker, not FDA, is responsible for safety and labeling.
What studies show: a 2019 meta-analysis of 7 trials in 270 people found beef protein gave similar results to whey for lean mass and fat mass. Compared with no protein, it raised daily protein intake, lean mass and leg strength, but not arm strength or fat loss (Valenzuela 2019). In an 8-week trial in 24 men doing resistance training, 20 g a day of beef, whey or carbohydrate gave broadly similar gains, with beef increasing upper-arm muscle thickness (Naclerio 2017). The trials are small.
Safety: the abstracts do not report side effects. The sources here do not describe drug interactions.
A half-life does not apply to beef protein: it is digested into amino acids like any food protein, so we do not list one.
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