Language
Provides precursor for vitamin D synthesis in skin.
| Genotype | Impact | What it means |
|---|---|---|
| TT (Normal) | Normal | Normal 7-dehydrocholesterol for vitamin D synthesis. |
| TG (Carrier) | Low impact | Slightly altered skin vitamin D production. |
| GG (Variant) | Moderate | Reduced vitamin D synthesis from sunlight. Supplementation more important. |
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