The dried rhizome of ginger contains approximately 1–4% volatile oils. These are the active constituents of ginger and are also responsible for ginger’s characteristic odour and taste. The pungent constituents are credited with the benefits of this food. Bio Health products are totally additive-free supplements of medicinal quality and are totally free also from ingredients that have been genetically modified. The herbal ingredients are wherever possible sourced from organic, wild crafted (non-threatened species) or cultivated plants. All the herbal raw materials conform to accepted scientific standards, British Pharmacopoeia, European Pharmacopoeia and British Herbal Pharmacopoeia. About Bio Health Bio Health are experts in the manufacture of pure plant herbal medicines. Their guiding principle is the philosophy of the traditional herbalists – "the whole herb for the whole man". All Bio Health products are manufactured in the UK in premises licensed by the Medicines and Healthcare Regulatory Authority (MHRA). All herbal raw material is tested against published Pharmacopoeia standards, which includes testing for heavy metals and pesticide residues.