Last August, after feeling very fatigued, a blood test showed I had a severe vitamin D deficiency. I asked around for a vegan supplement and Vitashine D3 was recommended. After five months, the latest blood test showed that my levels of vitamin D are already back to normal, much sooner than expected! Ordering is easy, delivery is very quick and the cost is low. I would recommend this to any vegans who feel they need a supplement.