03/08/2026
đź’š "I taught the '30g protein limit' for years. Turns out I was wrong." đź’š
đź’Ş I used to repeat this too. Turns out, it was based on short 3-4 hour digestion studies from over a decade ago.
The newer research tells a different story.
A 2023 study by Trommelen and colleagues tracked what actually happens to protein over a 12+ hour window — not just the first few hours.
Here's what they found with a 100g protein dose:
Digestion doesn't stop at 30g. It slows down instead. Think of it like a funnel — a small dose passes through fast, peaks quickly, and finishes in about 6 hours. A large dose empties more slowly, releasing amino acids gradually, keeping muscle protein synthesis elevated for over 12 hours.
And the "wasted" part? Less than 15% of the amino acids were oxidized (used for energy instead of muscle). The vast majority went straight into building and repairing tissue.
So no, your body isn't dumping everything past 30g.
What this actually means for you:
You don't need to eat every 3 hours to "hit your protein windows." Larger meals are digested efficiently over many hours. What matters most is your total protein for the day — not obsessively small, frequent doses.
If you've been stressing over exact meal timing or protein caps per sitting, you can let that go. Focus on the daily number, and let your body do what it's actually built to do.
Comment "PROTEIN," and I'll send you guidance on structuring your daily intake without overcomplication.