Ascorbic Acid Powder 500g
Fermented from Corn & sensitive people may react to this
Suitable for people with coeliac disease
This product is non-GMO - Country of Origin - CHINA
Humans, guinea pigs and fruit bats are the only mammals that cannot make their own vitamin C. Scaling up from animals, humans need at least 2 grams (2,000mgs) daily and arguably much more. Vitamin C is protective against infection. Sufferers of scurvy die from infections.
Ascorbic acid is the cheapest and best form of vitamin C. Vitamin C is toxic to all microbes and is a helpful part of treatment of the upper fermenting gut. Vitamin C is poorly absorbed which, for this purpose, is ideal! Microbes are present in the upper gut in millions, and in the lower gut in trillions. The idea is to gradually increase the dose until there is mild diarrhoea, i.e. one starts to kill lower gut microbes, then reduce. This is called taking vitamin C to bowel tolerance.
There is increasing evidence that many bowel tumours are driven by abnormal gut flora and fermenting microbes in the upper gut.
Ascorbic acid is acid, so rinse the mouth well with water after drinking.
If ascorbic acid is too acid, then swap to magnesium ascorbate which is neutral, but more expensive.
Recommended daily dose 5 grams taken in 500 ml of water.
1 x rounded scoop - enclosed - = 5 g approx
Children take half adult dose
Ideally take to bowel tolerance daily
MANUFACTURER’s NOTE:
Although the product does not contain Gluten we do not label the product as 'Gluten Free' as we would need to guarantee the product has been kept away from Gluten at every stage of the supply chain or test the batch for Gluten content. We would expect the product to be tolerated by coeliacs.
Vitamin C is a reducing agent, iodine is an oxidising agent and so, if taken at the same time, they will cancel each other out and not work. The key thing is that Vitamin C and Iodine (taken by mouth) should be taken apart from each other
Customer reviews
something I had never tries before Verified Purchase
took a few days to get used to the taste
Ann Watson | Aberaeron Ceredigion, West Wales | November 2025
Good quality product Verified Purchase
Good quality product that is easily absorbed. Easy to take and digest.
Yasmin Ahmed | Lancashire | October 2025
Well priced and always quick delivery Verified Purchase
Always find Dr Myhill's pricing to be very competitive, and delivery usually only takes a day or 2.
This is a must have to deal with sorting out the gut, and/or dealing with infection. Depending on dosage this can last between 2 - 3 months
Dominic Hobdell | Nottingham | September 2025
Effective Management for my Immune System Verified Purchase
None
Clare Hancock | B14 7TE | September 2025
Safe quality Verified Purchase
Part of good health
Alan Jones | Oswestry | September 2025






