[Afton]

I had it the first time I switched my diet. Headache, low energy, mild body-ache.

I'm currently a non-strict keto-er, which means I'm really just a high-fat, low carb eater. I think consensus on 'keto-flu' is really just that when you're flushing all the glycogen, it's taking with it a lot of water, and it's upsetting your sodium/potassium levels, I don't really know. I just know that I don't suffer from it when I transition from periods of moderate carbs back to low carbs.