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 ...
Lutein and Zeaxanthin Lutein and zeaxanthin are antioxidants found in many vegetables. Read about their effect on the eyes, with information on the best sources (and possible side effects of consuming too much). News About Eye Nutrition Latest news on vitamins and minerals that are good for your vision and eye health.