In adult men with low levels of certain vitamins and iron, adding millet to vitamin supplements for 60 days does not lead to measurably higher levels of vitamin B12, vitamin D, or iron in the blood compared to taking supplements alone, possibly because too few people were studied.

We analyzed one assertion on whether adding millet to vitamin supplements improves B12, D, or iron levels in men with deficiencies, and found no studies that contradict it. The evidence we’ve reviewed suggests that, over a 60-day period, adding millet to supplements does not lead to measurably higher levels of these nutrients in the blood compared to supplements alone [1]. This finding may be due to the small number of participants studied, which limits how much we can confidently conclude. We don’t know if longer use, different types of millet, or higher doses might change the outcome. There’s no evidence showing harm, but there’s also no clear signal that millet adds benefit in this context. The current data is limited to just one assertion, and no other studies have been reviewed to confirm or challenge this result. What we’ve found so far doesn’t rule out a possible effect — it just doesn’t show one under the conditions tested. If you’re taking supplements for a deficiency and considering adding millet, it may not make a measurable difference based on what we’ve seen, but it also doesn’t appear to interfere. More research with larger groups and longer timeframes would help clarify whether millet has any role in supporting nutrient levels.