Gelatin and collagen synthesis
What 2 graded rows on gelatin agree on for collagen synthesis, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Gelatin page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Gelatin page, with its PubMed record.
Your question
Gelatin and collagen synthesis
2 rows · 18 peopleSplit. 1 row found an improvement and 1 found no difference.
- DGrade D× 2
- Rows
- 2
- Trials
- 2
- People
- 18
Where they differ
From the rowsThe best-graded row, grade D, is a crossover trial of 10 people (2019) and found no difference.
The row that found no difference is newer (2019) than the row that found an improvement (2017).
The rows
1 improved · 1 no difference- DGrade DCollagen synthesis marker (PINP) after exercise · Improved
Crossover RCT · n 8 · 2017 · Healthy young men
5 or 15 g, 1 hour before 6 minutes of rope skipping, three times a day · 3 days per condition
Blood glycine, proline, hydroxyproline and hydroxylysine rose with dose, peaking at 1 hour. With 15 g, the collagen synthesis marker PINP doubled; serum taken after gelatin increased collagen content and strength of lab-engineered ligaments.
- DGrade DCollagen synthesis marker (PINP) after exercise · No difference
Crossover RCT · n 10 · 2019 · Recreationally active men
15 g, 1 hour before 6 minutes of rope skipping · Single dose per condition
PINP tended to rise about 20% with gelatin and hydrolyzed collagen but not with placebo or the gummy; large variability meant no treatment was statistically significant.