Mayo Clinic Q and A: Vitamin D — too much or too little can lead to health problems

DEAR MAYO CLINIC: I have heard different recommendations from different sources regarding vitamin D. One doctor told my husband that everyone living in the Northern Hemisphere should take a vitamin D supplement every day, even in the summer. What do you recommend? ANSWER: Understanding how much vitamin D you need can be confusing because there … Continue reading Mayo Clinic Q and A: Vitamin D — too much or too little can lead to health problems