My dr has me on 50, 000iu of vit d once per week. i feel great the day after i take them, then the rest of the week i feel blah. can i add more vit d?

No: Feeling great after taking this vitamin may be a placebo effect. Levels of vitamin d should be checked after 4 to 8 weeks of that high dose vitamin d.

Vitamin D: Vitamin d is fat soluable and can be over dosed. Don't take more than 2000/day without being monitored.

Talk to Dr or Pharm: Vitamins a, d, e & k are the fat soluable, so toxicity can occur, even if uncommon. Should ask your dr or pharmacist for dose & frequency advice.