Coffee all those are great minerals or electrolytes during the fasting period which you really should be doing if you're using intermittent fasting all of those are perfectly fine even a Lean Start Keto
Lean Start Keto small squeeze of lemon or a small amount of ginger in your water all those can be fine to not break up fast but you really need to make sure you're familiarizing.
https://www.healthpubmed.com/lean-start-keto/
https://www.supplementbears.com/lean-start-keto/
https://www.supplementdolphin.com/lean-start-keto/
https://www.supplementtiger.com/lean-start-keto/