Forms Comparison
| Form | Bioavailability | Best For |
|---|---|---|
| Manganese Gluconate | Moderate-High | General supplementation — well-absorbed and gentle on the stomach |
| Manganese Bisglycinate | High | Chelated form with high bioavailability and minimal GI effects |
| Manganese Citrate | Moderate | Good option for combination mineral formulas |
| Manganese Sulfate | Moderate | Research standard — commonly used in clinical studies |