New evidence
Pea protein slashed glucose spikes by 37% more than glucose alone in a single-blind trial — but the same study found it both lowered and raised insulin, a mixed signal that demands caution.
This is one of the first controlled trials to compare pea protein head-to-head with whey for glycemic control, so while the glucose effect is large and statistically robust, the contradictory insulin findings and the single-blind design mean we need replication before drawing firm conclusions.
In a randomized trial, healthy people who took 20 grams of pea protein alongside glucose had a 37% smaller blood sugar rise over 3 hours compared to glucose alone (glucose AUC 89.8 vs 143.2). However, the same study reported that pea protein both reduced and increased insulin responses in different analyses — a puzzling discrepancy — and the single-blind design (participants knew what they were drinking) could have influenced results.
Where this fits in the evidence
This is among the first studies we've indexed on Pea Protein for Reduced Glycemic Response — treat it as an early signal until more research accumulates.
The study
- Randomized Controlled Trial (RCT)
- 2026-01-30
- PloS one
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.