Having more ketones in your body will not help you lose more weight. The level of ketones in your bloodstream won't tell you how much fat you are burning but how much energy supply your body has at the moment - that supply may be coming from your food and not your body fat.
The main reason people lose weight on a ketogenic diet is they are eating less thanks to their lower glucose and insulin levels as well as ketones' natural appetite-suppressing effect . To lose body fat, you need to stay in calorie deficit. Having a tamed appetite definitely helps with this. But don't be fooled into thinking the more ketones, the greater the appetite suppression.
Your ultimate goal on keto is not greater ketone levels or ketosis, it's keto adaptation, aka fat adaptation. This is a metabolic switch where your body becomes efficient at burning fat for fuel. It can take some time of being on a keto diet to achieve this.
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