I'm not being deliberately dense but how do you actually go sugar free given sugar is in pretty much everything?
I accept no cake & chocolate but is it also no fruit? So only eating vegetables? What about drinks? No fizzy drinks obviously but what about milk or is it literally only drinking water?
I'd like to give it a go but as far as I can see, sugar is in pretty much everything so not sure where to start & if it's literally just eating veg & drinking water, then doubt I'll last 
TIA