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.
GE Energy's 1.5MW series is the world's most widely-deployed wind turbine, with more than 16,000 installed around the globe. GE also produces a range of 2.5MW models and the GE 4.1-113 4.1MW direct drive wind turbine model designed for offshore use. Goldwind is China's second largest wind turbine manufacturer. It also claims to be the world's leading manufacturer of permanent magnet direct drive turbines. Goldwind produces 1.5MW and 2.5MW wind turbine models.