There are actually symptoms to indicate your body is in ketosis and for most people this seems to occur a few days following a carbohydrate restrictive diet.
Symtoms may include:
Tiredness or fatigue
Headache
Feeling thirsty all the time
Bad breath
Metallic taste in the mouth
Weakness
Dizziness
Nausea or stomach ache
Sleep problems
Do any of these sound familiar?
The good news is ketosis symptoms usually last a few days up to a week until the body becomes used to burning fat as its primary fuel source instead of glucose.