Any study on iron rich well water drinking community's ?
Not that I can find in a short search but I found this and I'm sure I posted it sometime back on iron deficenccy and it's relation to vitamin d
The Association between Iron and Vitamin D Status in Female Elite Athletes
https://www.ncbi.nlm.nih.gov/p…20fat%20soluble%20vitamin.
In the first case, iron deficiency was present in 32% of 25(OH)D deficient subjects, compared with 11% in the vitamin sufficient group (χ2 = 10.6; p = 0.001). Conversely, low 25(OH)D concentration was observed in 75% of iron deficient females, compared with 48% of subjects with normal iron status (χ2 = 15.6; p = 0.001).
The odds ratios for vitamin D deficiency were significantly higher for those with iron deficiency, and the values of ORs increased along with a decreasing level of ferritin as a criterion for iron deficiency, from 1.75 (95% CI 1.02–2.99; p = 0.040) at a ferritin level of 30 µg/L to 3.56 (95% CI 1.6–3.12; p = 0.002) at a ferritin level of 12 µg/L. The highest value of OR equal to 4.6 (95% CI 1.81–11.65; p = 0.001) was observed in the group with more advanced iron deficiency, i.e., in subjects with latent ID and IDA (Table 4).