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| Form | Bioavailability | Best For |
|---|---|---|
| L-Glutamine Powder | High | Cost-effective bulk form — dissolves in water; most popular for higher doses |
| L-Glutamine Capsules | High | Convenience for lower doses (500-1,000 mg per capsule) |
| L-Alanyl-L-Glutamine (Sustamine) | High | Dipeptide form with improved stability and absorption during exercise |
Bioavailability: High. Best for: Cost-effective bulk form — dissolves in water; most popular for higher doses.
Bioavailability: High. Best for: Convenience for lower doses (500-1,000 mg per capsule).
Bioavailability: High. Best for: Dipeptide form with improved stability and absorption during exercise.