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Rice versus whey during training: a small high-dose comparison

Both groups improved during resistance training. The study did not establish that all rice and whey products are equivalent.

Read the evidence ↓

Supplement Science Insights Editorial Team

Published September 23, 2026

The study and its comparison

Twenty-four trained young men received 48 grams of rice or whey protein on training days during an eight-week program. Researchers measured body composition, strength and performance. [1]

Both groups improved, and the analysis found no significant time-by-treatment interactions. There was no group completing the same program without supplemental protein. [1]

What the finding establishes

A nonsignificant difference in a small study is not proof of equivalence. The large serving and selected population limit transfer to smaller doses or other users. Increnovo funded the study; the authors declared no competing interests. [1]

A hypothetical distinction

Imagine two groups improve with training. Without a training-only comparator, their shared improvement cannot be assigned entirely to the powder.

Interpretation checklist — Rice versus whey during training
DetailInterpretation
Measured outcomeKeep the endpoint specific
Study preparationNot every retail product
Remaining uncertaintyNot resolved by a mechanism
Rice versus whey during training: a small high-dose comparison — original article outline diagram
Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

  1. The effects of 8 weeks of whey or rice protein supplementation on body composition and exercise performance - PMC
    Source consulted: 2026-09-19. This is a reference resource, not a claim that we conducted the studies or tested a product.