The drink comprises carbonated water, sucrose, fruit juices from concentrate (4%)—including orange and lemon—glucose syrup, lemon fruit, natural flavourings, taurine (0.4%), acidity regulators (calcium lactate, sodium citrates), acid (citric acid), Panax ginseng root extract (0.08%), preservative (potassium sorbate), antioxidant (ascorbic acid), caffeine (0.03%), vitamins (niacin/B3, vitamin B6, riboflavin/B2, vitamin B12), L-carnitine L-tartrate (0.004%), sweetener (sucralose), sodium chloride, D-glucuronolactone, guarana seed extract (0.002%), inositol, and maltodextrin. ​

Monster Energy The Doctor does not contain any of the 14 major allergens as defined by UK and EU food regulations. It is also gluten-free and GMO-free. However, due to its high caffeine content (32mg per 100ml), it is not recommended for children, pregnant or breastfeeding women, or individuals sensitive to caffeine.