The therapeutic properties of passion flower have been acknowledged since the 16th century in South America and Europe. Historically, passion flower has been used to treat a range of conditions including insomnia, hysteria, nervous tachycardia, and neuralgia
Traditionally, various foods rich in magnesium have been the primary source for obtaining adequate levels of this mineral. However, it has been found that many populations, especially Western populations, experience magnesium deficiency.
Before inositol was available in the form of supplementation, the only source of inositol was its natural production in the body and the consumption of various foods such as fruits, vegetables, grains, and beans.
Various types of tea have been consumed since ancient times and have been recognized for their abundant therapeutic properties. In particular, the health benefits of teas steeped from Camellia sinensis leaves have been attributed to the amino acid, l-theanine.