I had that foul taste for a month so I just kept dropping the weight, changing the diet and upping the water. Many people have an issue with it but AFAIK, it subsides.
Hi I have been managing my diabetes 2 with LCHF since 2011. I have also been fasting, both work, but from time to time it does not work. So I am now trying Metformin slow release 500mg once a day. But I have found that my mouth becomes incredibly dry! Any one else ?