Your gut decides how effective your protein actually is.
That is the premise the formula is built on, and the reason the research on this page is about digestion rather than muscle. Every figure below is traced to its source.
The Gut-Muscle Axis
Hard training pulls blood away from the gut. The literature describes what follows as a loop, and describes a second loop that runs the other way.
Training volume, travel, heat, caffeine, NSAIDs, and a high-protein diet all land on the same organ. The people pushing hardest are the ones whose digestion is under the most load, which is exactly when absorption matters most.
Mechanism established in a review article: Przewłócka et al., 2020. Nutrients 12(5):1451. PMID 32443396. A review describes the pathway. It is not evidence that Raw Planet produced these outcomes, and short-chain fatty acids are made by your own bacteria, not contained in the powder.
What changed over three weeks
Wardenaar and colleagues gave participants fermented whey protein with prebiotic GOS for 21 days and tracked gastrointestinal complaints and stool microbiome composition.
The genus that prebiotic GOS feeds directly.
Measured against their own baseline over the same 21 days.
Share of participants reporting severe gastrointestinal complaints, p<0.001.
Self-reported satisfaction at the end of the three weeks.
The science is the sell.
Read the ingredients, check the citations, then decide. That is the whole pitch.