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Posted By: Scott Stewart, MSAc., Dipl.Ac., LAc.
Vitamin C (a.k.a. ascorbic acid) is one of the worse supplements you can buy over – the – counter (OTC). Like other OTC supplements, you never know what you’re truly getting in the ingredients, because most all OTC brands use low-quality ascorbic acid that has been sourced from China, the world’s largest producer of ascorbic acid. Between the years 2013 and 2015 China contributed 80 – 90% of the world’s vitamin C supply.
If you remember, China does not have a very solid reputation when it comes to quality, especially as it pertains to keeping chemicals and unknown substances out of their products; i.e. recent examples include lead in toys, contaminated infant formula and powdered milk.
To make this problem worse, the U.S. government does not test imported vitamins and supplements or their ingredients. For cheap OTC supplement brands this is a plus, because they can adulterate the products with unknown substances.
This is just one of many reasons I strongly recommend patients and consumers alike to purchase physician grade supplements, which are held to a much higher standard of scrutiny.
Thorne Research is recommended for 3 main reasons: