rs602662(G;G)

Lower vitamin B12 levels

Magnitude
2.0Worth knowing
Repute
Bad
Frequency
45%Average of 10 populations
On SNPedia
rs602662(G;G)
Gene
FUT2

Frequency

Share of people with G;G in each HapMap population.

  • Japanese (Tokyo)100%
  • Han Chinese (Beijing)98%
  • Gujarati Indian58%
  • Maasai (Kenya)37%
  • Mexican ancestry (Los Angeles)35%
  • Luhya (Kenya)33%
  • Tuscan27%
  • African ancestry (Southwest US)23%
  • Yoruba (Nigeria)19%
  • European ancestry (Utah)19%

Other genotypes of rs602662

  1. A;AMost notableGoodHigher vitamin B12 levelsWorth knowing · 2.017% of people

All about rs602662

Notes

From SNPedia

We found that the SNP rs602662 was significantly associated with the levels of vitamin B(12) (p value<0.0001). We also found that individuals adhering to a vegetarian diet with GG (homozygous major genotype) have significantly lower levels of vitamin B(12) in these individuals. PMID 23201895

References

Source and license

Adapted from rs602662(G;G) on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.