Yes, indeed! http://www.mayoclinicproceedings.org/article/S0025-6196(15)00244-X/pdf http://www.mayoclinicproceedings.org/article/S0025-6196(15)0... "The evide

Yes, indeed! http://www.mayoclinicproceedings.org/article/S0025-6196(15)00244-X/pdf http://www.mayoclinicproceedings.org/article/S0025-6196(15)0... "The evidence is clear that vitamin D toxicity is one of the rarest medical conditions and is typically due to intentional or inadvertent intake of extremely high doses of vitamin D (usually in the range of >50,000-100,000 IU/d for months to years)". The significant advantages of D3 supplementation for sun-starved people are evident in the literature.