Determination of Vitamin C Content in Dietary Supplements

Determination of vitamin C in iranian citrus fruits

Determination of Nitrate and Nitrite Content of Dietary Supplements Using Ion Chromatography

Nitrate, a compound of low toxicity, when ingested orally, is absorbed from the gastrointestinal tract in its free form. About 20-28% of this is then secreted into saliva and only 4-8% of the ingested nitrate is converted into nitrite by nitrate reducing bacteria. The resulting nitrite is then further reduced to nitric oxide by the same bacteria [1-3]. Many studies have related the beneficial e...

Evaluation of heavy metals content in dietary supplements in Lebanon

UNLABELLED BACKGROUND The consumption of dietary supplements is widely spread and on the rise. These dietary supplements are generally used without prescriptions, proper counseling or any awareness of their health risk. The current study aimed at analyzing the metals in 33 samples of imported dietary supplements highly consumed by the Lebanese population, using 3 different techniques, to ens...

Isotachophoretic Determination of Glucosamine and Chondroitin Sulphate in Dietary Supplements

Václavíková E., Kvasnička F. (2013): Isotachophoretic determination of glucosamine and chondroitin sulphate in dietary supplements. Czech J. Food Sci., 31: 55–65. Glucosamine and chondroitin sulfate, components of normal cartilage, are used as ingredients in dietary supplements intended to treat osteoarthritis and/or to support joint health. Of concern is the documented lack of quality in many ...

Dietary Vitamin D3 Supplements Reduce Demyelination in the Cuprizone Model

Vitamin D is emerging as a probably important environmental risk factor in multiple sclerosis, affecting both susceptibility and disease progression. It is not known to what extent this effect is due to a modulation of peripheral lymphocyte function, or to intrathecal effects of vitamin D. We investigated the effect of dietary vitamin D3 content on de/remyelination in the cuprizone model, which...