Boosting Vitamin D rich foods in your diet, and taking supplements to make for deficits is crucial during winters. Especially, in places like- Beaverton-Oregon where we live, sunlight is a rare commodity during winters.
Contamination of lead in vitamin D is being evaluated as a major issue by US FDA. Choosing a safe supplement for yourself and your kid is a mind bending task, given the confusing and enticing nature of advertisements of vitamin supplements.
Click on the link given below to see the US FDA report on levels of lead contamination in leading vitamin brand for kids and women.