Hi there Secret,

Ketones can be excreted if you have eaten a fatty meal, are dehydrated, are not eating enough (starving yourself) or if you have drunk alcohol. They can also give a negative result, despite your being in ketosis, if you are drinking lots and lots of water.

Can you tell I think ketostix are a waste of time and money?

I worry more about weight loss than changing the colour of a piece of plastic. They can be a useful tool for some, but it's worth being aware of their inconsistencies.

All the best.

Rosebud