You don’t need to worry about being in ketosis all the time on a low-carb or keto diet. You can measure your ketones with a blood or breath meter, or urine test strips, but these aren’t required. You can lose weight and reverse many different chronic health problems without ever knowing your ketone level. Good ways to know you’re in ketosis without measuring are that you feel much less hungry and can go several hours between meals without needing a snack or craving sugar. Bad breath – “keto breath” – is also a good sign. You might also notice more physical energy and sharper thinking – so long, brain fog! If you do measure ketones, it’s important to know that higher ketones don’t make you lose more weight or lose it faster, so don’t worry about getting high levels.