Supplements as generally understood include vitamins, minerals, fiber, fatty acids, or amino acids, among other substances. U.S. authorities define dietary supplements as foods, while elsewhere they may be classified as drugs or other products. There are more than 50,000 dietary supplements available. More than half of the U.S. adult population (53% - 55%) consume dietary supplements with most common ones being multivitamins.
Wind power capacity has expanded to 369,553 MW by December 2014, and total wind energy production is growing rapidly and has reached around 4% of worldwide electricity usage.
Ontario is Canadaâs leader in clean wind energy with nearly 4,050 MW of installed capacity, supplying over five per cent of the provinceâs electricity demand. In 2012 â for the first time ever â more electricity was generated in Ontario using wind than coal.