9. Wheat Bran
Wheat bran, like beans, has significant amounts of phytates, which can inhibit calcium absorption. However, unlike beans, 100 percent wheat bran tends to decrease calcium absorption in other meals consumed at the same time. When you combine milk and 100 percent wheat bran cereal, for example, your body may absorb some.
But not all, of the calcium from the milk. Wheat bran in other meals. As bread is considerably less concentrated and is unlikely to have any effect on calcium absorption. If you take calcium supplements. You should do so at least two hours before or after consuming 100 percent wheat bran.