Flying Dodo
It'll soon be summer
The formula I follow is low carb (no sugar, no white flower products but wholegrain bread, brown rice) + high protein (chicken, scrambled egg with low egg yolk content) + high fibre (fruits and salad).
Avoiding sugar helps me to maintain a great performance through the day, no slowing down.
Avoiding sugar is definitely a good thing, but with eating wholegrain bread, rice, fruit and salad, unless you have an unusually high cut-off point before your body switches from fat to carbs, then it's unlikely you're in ketosis. You're unlikely to realise it's an issue unless you try and exercise hard, as your body can manage every day things on the lower level of carbs it's got, but if you exercise hard and start bonking, then you're not in a fat burning state.