Contrary to your article (Organic and UHT milk could put unborn babies at risk, says study, 28 April), our most recent testing of supermarket milk, carried out in January 2015 by an independent third party, has shown that organic milk is not deficient in iodine when compared with conventional milk. In the past year, mineral supplementation of organic cow feed has become routine across the industry and has shown comparable levels of iodine in organic versus non-organic milk.
There is no evidence to show mothers consuming organic milk have lower iodine levels. There are, however, scientifically proven health and environmental benefits to organic milk. Studies show that organic whole and semi-skimmed milk has 68% more beneficial omega-3 fatty acids, and higher levels of vitamin E and beta-carotene than non-organic milk. Dutch research has also shown incidence of eczema in infants fed on organic dairy products and whose mothers also consumed organic dairy products are 36% lower than those who consume conventional dairy products. Deficiency in iodine is due to a drop in overall milk consumption, rather than as a consequence of the type of milk being consumed.
Nicholas Saphir
Chairman, Organic Milk Suppliers’ Co-Operative
Milk and dairy products contribute the largest percentage of iodine to the female adult diet in the UK
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