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 ...
Foods such as carrots, tomatoes, bell peppers, strawberries, pumpkin, corn and cantaloupe are excellent sources of vitamins A and C. And carotenoids  the compounds that give these fruits and vegetables their yellow, orange and red pigments  are thought to help decrease the risk of many eye diseases.