So Cola Tab is still available in my country (production in the US ended in 2020) and it is marketed as a 0 calorie drink. I've done all the research i can and can find nothing indicating that it does have any calories or nutritional benefit at all. Even the label on the bottle says that all it has is 11mg of sodium in 2.25 litres. So to me it seems logical that it would be safe to drink in a fasting period? Thought this would be a good place to see if anyone can confirm or deny my thoughts on the matter. Thank you in advance.
Answer
If you are fasting for weight loss you are fine. If you are fasting for the health benefits then some of them might be diminished.
You are safe with water, black tea, black coffee, green tea (with lemon) as long as they are consumed w/o milk, cream, sugar or anything else.
Might not want to drink too much caffeine 8 hours before bed.