Beware of Antioxidants, Warns Scientific Review

636046077915388201supplements.jpg

20 Jul 2016 --- Two experts have concluded that antioxidant supplements should not be taken unless a clear deficiency is diagnosed by a healthcare professional. The lay press and thousands of nutritional products warn of oxygen radicals or oxidative stress and suggest taking so-called antioxidants to prevent or cure disease.

Professor Pietro Ghezzi, Chair in Experimental Medicine at the Brighton and Sussex Medical School and Professor Harald Schmidt, Chair of Pharmacology at the University of Maastricht have both analyzed the evidence behind this.
The result is a clear warning: do not take these supplements unless a clear deficiency is diagnosed by a healthcare professional.
 
Humans depend on oxygen to produce energy, but oxygen also has the potential to generate so-called oxygen radicals, which may cause oxidative stress and disease. Markers of oxidative stress have been correlated with cardiovascular disease, cancer, diabetes, and other conditions.
 
Because of these associations, antioxidant supplements are taken by millions of people; however, none of the antioxidants tested in randomized clinical trials have demonstrated any benefit. On the contrary, some of them may cause harm. This is because oxygen radicals not only trigger disease but also perform many important functions in the body, such as for immune defense and hormone synthesis. Thus anti-oxidants will interfere with both healthy and disease-triggering oxygen molecules.
 
"Oxidative stress could be important in some conditions and only in a small proportion of patients," said Professor Ghezzi. "It can be targeted in a totally different manner, with drugs targeted only at those sources of oxygen molecules that are triggers of disease and leave the healthy ones alone," added Professor Schmidt.
 
The review is published the British Journal of Pharmacology.

To contact our editorial team please email us at editorial@cnsmedia.com

Related Articles

Health & Nutrition News

Gut appeal: Healthy microbiome thanks to food processing waste

15 Feb 2019 --- New research from Maastricht University (UM) has uncovered a novel use for waste from the food processing industry: boosting the microbiome. Using the TNO in vitro model of the colon (TIM-2), research by Carlota Bussolo de Souza has shown that fermenting fiber from fruit and vegetable peel can help improve the gut flora of people with obesity.

Health & Nutrition News

Indena’s Centella Asiatica extract touted as beneficial for heart and skin health

14 Feb 2019 --- Botanical ingredients company Indena’s Centella asiatica extract holds potential in a wide range of medicinal applications in diabetic neuropathy, cardiovascular diseases and skin health. This is according to a new monograph by several researchers, commissioned by the company and coined “Centella asiatica: entering a new era” which takes note of the pre-clinical and clinical studies that confirm the plant’s properties for broader applications.  

Health & Nutrition News

“Aging well starts young”: Preventative approach widens NPD scope

14 Feb 2019 --- Health and wellness are important for consumers across all age groups and life stages, united by a common goal of “aging well.” The nutrition industry is increasingly approaching the topic of aging in a broad manner, tapping into a range of market areas from bone and joint health to energy and alertness. Long gone is a negative “anti-aging” philosophy and celebrated is an approach touting “positive aging” or “aging well,” according to industry experts.

Health & Nutrition News

Algatech launches potent astaxanthin in whole-food format

11 Feb 2019 --- Israeli-based Algatechnologies has launched AstaPure Arava, an all-natural, algae complex that contains naturally occurring constituents of the Haematococcus Pluvialis algae. The company claims that this species of microalgae is the “richest known source of astaxanthin” and its properties are supported by research from NIS Labs, a research institute based in the US. Led by Dr. Gitte Jensen, the research has shown that Arava algae powder is highly potent and has the synergistic effects of natural astaxanthin and the whole-algae complex.

Health & Nutrition News

Kemin spearmint extract found to boost reaction performance and agility

07 Feb 2019 --- Ingredient manufacturer Kemin Industries’ nootropic spearmint extract, coined Neumentix, has been found to improve agility and reaction performance in young adults. A randomized, double-blind, placebo-controlled clinical trial, published in the International Society of Sports Nutrition, concluded that supplementation of 900mg of Neumentix improved specific measures of reactive agility in a young active population sample.

More Articles
URL : http://www.nutritioninsight.com:80/news/beware-of-antioxidants-warns-scientific-review.html