Eleuthero (Siberian Ginseng)
- Eleuthero (Siberian ginseng) is a shrub that grows in Siberia, China, Korea and Japan. The root of the plant is commonly used in herbal remedies. According to the American Cancer Society, several studies have shown that eleuthero may help boost energy. However, the research is not conclusive. A review of eight clinical studies found that three studies suggested that eleuthero improved physical endurance, while five showed no benefit. Moreover, the five studies showing no benefit were determined to be more scientifically sound.
- Gotu kola is a plant that grows in Madagascar, India, Sri Lanka, Indonesia and South Africa. The leaves and stem of the plant are commonly used in herbal remedies. Along with boosting energy, proponents of the herb claim, gotu kola can reduce fever, relieve congestion and cure cancer, among other things. Some studies conducted on animals have shown that gotu kola may have some curative value, such as quickening the healing of wounds. However, more scientific research is needed to determine the effect of gotu kola on boosting the energy of humans. Nevertheless, many people, such as the authors of an online herbal supplements guide, www.herbal-supplements-guide.com, believe the herb to be a valuable rejuvenator.
- Maitake is an edible mushroom that grows in the mountains of northeastern Japan. It is commonly used as a dietary supplement and to fight chronic fatigue. A year-long study evaluating the effect of Maitake on individuals with HIV, conducted by Douglas Schar, found that Maitake improved the energy levels of some participants. Several additional studies have suggested that Maitake may positively affect the immune system. Nevertheless, scientific studies regarding the effect of Maitake on energy are sparse.