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Yes, coffee is OK after a stomach bug once vomiting and diarrhea stop; begin with small decaf sips and gauge tolerance.

Yes—adding cold milk to hot tea is fine when the tea isn’t boiling and the milk is fresh.

Yes, you can add cold milk to espresso; you’ll get a milky drink with a cooler body and different texture than steamed milk.

Yes, adding green tea to a smoothie works well for light caffeine, fresh flavor, and extra polyphenols.

Yes, adding espresso powder to coffee intensifies roast depth and body; start with ¼–½ teaspoon per 8 oz and adjust to taste to avoid bitterness.

Yes, adding gelatin to coffee works; gelatin in coffee dissolves in hot brew and adds mild body and protein.

Yes, you can add Everyday Dose to brewed coffee; dissolve the scoop in hot water or milk first, then stir it into your cup.

Yes, cream can go in many herbal teas, but tart blends like hibiscus may curdle dairy unless you tweak temperature and pick the right milk.

Yes, combining mineral salts with coffee drinks is safe for most healthy adults when amounts stay modest and the drink still tastes like coffee.

Yes, you can flavor an Americano with syrups, milks, or spices while keeping the espresso-forward profile.