Language
Bone and tendon structure. Injury risk.
iHow to read this: each row is one possible genotype, the two DNA letters you carry at this position, one inherited from each parent. "Normal" matches the more common version; "Carrier" (heterozygous) means you have one copy of each version, usually a partial effect; "Variant" (homozygous) means both copies carry the less common version, usually the strongest effect. The estimated frequency below is calculated from the variant's frequency in the general population (Hardy-Weinberg principle) — it is a population estimate, not a measurement of our own customers.
| Genotype | Impact | Est. frequency | What it means |
|---|---|---|---|
| GGNormal | Normal | ~67% | G/G: normal type I collagen; standard bone and ligament strength. |
| GTCarrier | Low impact | ~30% | G/T: slightly altered type I collagen ratio; small increase in ligament-injury susceptibility. Load progression and strength work matter. |
| TTVariant | Moderate | ~3% | T/T: altered type I collagen assembly, associated with lower bone density and a higher risk of cruciate-ligament and stress injuries. Strength training, calcium and vitamin D are protective. |
Estimated with the Hardy-Weinberg principle from the variant's population frequency, not measured directly.
How to get and read your raw DNA file
Upload your 23andMe or AncestryDNA file and get a personalized nutrition plan based on your exact genotype.