Metric system. Metric system, international decimal system of weights and measures, based on the metre for length and the kilogram for mass, that was adopted in France in 1795 and is now used officially in almost all countries.
However, if taken in large doses, vitamin D side effects may include: Thirst; Metallic taste in the mouth; Increased urination; Decreased appetite; Weight loss; Constipation; Vomiting; Diarrhea; Itchy skin; Loss of muscle tone; Irritability; Tiredness; Sore eyes; Pain in the bones and joints ...
Decreased vision due to vitamin deficiencyâHeavy drinking affects the absorption of vitamins in the liver, vitamins needed to maintain healthy eyesight. For example, a vitamin B-1 deficiency due to alcohol consumption can cause a weakness or paralysis of the eye muscles. Or a vitamin A deficiency due to alcoholism can cause: night blindness, thinning of the cornea, corneal perforation, dryness, and even blindness due to retinal damage.