Drinks

No. Samurai Bitter Green 500 ml is a concentrate: measure 50 ml as a shot or dilute a portion according to the directions and your taste. The whole bottle is not one serving. Samurai Energy Pu-Erh & Blueberry 330 ml is ready to drink. Storage differs too: refrigerate Bitter Green after opening and use it within a month, while the opened can should be consumed immediately.

Count the volume you actually drink. Bitter Green lists about 65 mg of caffeine in 50 ml. Samurai Energy Pu-Erh & Blueberry contains about 40 mg per 100 ml, giving around 132 mg in a full 330 ml can. Adding water does not remove caffeine from the measured portion; it only dilutes the drink. Count other coffee and tea throughout the day too. Caffeine from a natural tea source can still affect sleep.

Not necessarily. Cadence Core Citrus in 330 ml and Daily Orange Soda in 355 ml each contain 500 mg of sodium, 190 mg of potassium and 30 mg of magnesium. Both are described as sugar-free and caffeine-free, so do not count them as a carbohydrate source for prolonged exercise. Choose according to whether you need fluids and minerals or energy as well. If you restrict salt, count the sodium in the whole drink.

Hellenic Herbs Greek mountain tea is made from Sideritis and is described as caffeine-free. Okumidori matcha, on the other hand, is ground green tea from Camellia sinensis and contains caffeine. Preparation differs too: mountain tea steeps for about 5 minutes in water around 95 °C, whereas matcha powder is whisked. When choosing for the evening, look for the ingredients and caffeine information, not just the word 'tea'.

Only if the powder itself contains no milk ingredients. Sleep Prep contains buttermilk, micellar casein and Lactium milk peptides, so mixing it with water does not make a milk-free drink. With pure cocoa and other blends, check the full label and any trace-allergen information.