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Association of lactose digestion phenotypes obtained from lactose tolerance tests (LTTs) with −13,910 C > T genotype. According to a full dominance model, homozygotes for the −13,910*C allele (CC) are predicted non‐digesters, while homozygotes for the −13,910*T allele (TT) and heterozygotes (CT), are digesters
| LTT phenotype | CC | CT | TT | Total |
|---|---|---|---|---|
| Nondigesters | 17 | 0 | 0 | 17 |
| Digesters | 1 | 16 | 2 | 19 |
| Indeterminate | 3 | 0 | 1 | 4 |
| H2 nonproducer | 1 | 0 | 0 | 1 |
| Total | 22 | 16 | 3 | 41 |
