Glycine: study protocols
4 study groups say how much Glycine participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
1,790 products in our catalogue print how much Glycine a serving holds.
Most common: 250 mg to 500 mg, 23% of 1,790 products.
| Dose per serving | Products |
|---|---|
| 25 mg or less | 77 |
| 25 mg to 50 mg | 175 |
| 50 mg to 100 mg | 185 |
| 100 mg to 250 mg | 259 |
| 250 mg to 500 mg | 411 |
| 500 mg to 1 g | 303 |
| 1 g to 2.5 g | 207 |
| 2.5 g to 5 g | 162 |
| over 5 g | 11 |
Fewer than 5 study groups in one unit match, too few to draw the chart.
Commonly used together
None of these 4 study groups took Glycine with anything else.
4 study groups
| Study | |||
|---|---|---|---|
| Effect of oral glycine on the clinical, spirometric and inflammatory status in subjects with cystic fibrosis: a pilot randomized trial 2017 · glycine · People over 6 years old with cystic fibrosis; mean age 13.0 ± 5.4 years, both sexes | 500 mg/kg | 8 weeks | 13 |
| Double-blind, placebo-controlled, crossover trial of glycine adjuvant therapy for treatment-resistant schizophrenia 1996 · glycine · 11 treatment-resistant patients with chronic schizophrenia | 800 mg/kg | 6 weeks | 11 |
| The effect of enteral glycine on plasma glycine and muscle structure, size, and function in the critically ill: A randomized controlled trial 2025 · high-dose glycine · Mechanically ventilated critically ill patients | 400 mg/kg | 7 days | 10 |
| The effect of enteral glycine on plasma glycine and muscle structure, size, and function in the critically ill: A randomized controlled trial 2025 · low-dose glycine · Mechanically ventilated critically ill patients | 200 mg/kg | 7 days | 9 |