However, until more research is done, it is recommended that vegans strive to meet the RDA for calcium intake. Strict vegetarians must ensure adequate vitamin D, which aids in calcium absorption. It is also important for all Americans, regardless of dietary preferences, to incorporate physical activity into their daily routines in order to maintain and build bone strength. Foods highest in lactose include yogurt, skim milk, ice cream, and cottage cheese. Breast Cancer Breast cancer rates have been correlated with intake of dairy products in many population-based studies.
Excess estrogen is known to increase cancer cell replication.
Not only does milk contain traces of cow's estrogen, but the fat contained in milk, as in any food, increases the production of estrogen in a woman's body. In children, iron deficiency may result from excessive intake of cow's milk due to its displacement of the intake of iron-rich foods in the diet. Common symptoms experienced after dairy consumption include bloating, gas, diarrhea, and nausea. In many parts of the world, dairy products are not consumed or play limited roles in the diet. Insulin Dependent Diabetes Mellitus Genetically susceptible infants who consume cow's milk may be at increased risk for childhood onset diabetes.