Recently bought tummy tea and detox tea by t2 wondering if you can have these while fasting or does it ruin it, since I know some other teas are allowed.
I heavily rely on tea during my fasting windows. The key is that there cannot be any sugar/carbs/or calories in the tea. No milk, no sweeteners, and you have to watch ingredients because some teas can have little additives that will break you out of ketosis. My favorites are plain black chai, Japanese sencha, matcha, roobios, and pretty much any herbal. The teas you listed sound like they are just herbal infusions, which is a okay☺️
Fennel, juniper berries, spearmint, lemongrass, liquorice root, strawberry leaves, alfalfa, marigold petals
My gut says no dice…but not certain. The berry and the liquorice root in particular makes me lean that way.