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 ...
How to Choose Vision Supplements Learn which vitamins are important to eye health and what to look for when choosing vision supplements. How Diet and Nutrition Protect Aging Eyes Learn which foods and vitamin supplements are the best for maintaining eye health in older people. 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. Omega-3 Essential Fatty Acids: Eye Benefits Omega-3 fatty acids are important for keeping your eyes and your heart healthy. Learn the eye benefits of omega-3 fatty acids and the best omega-3 foods to include in your diet.