0 calorie True Lemon Energy helps you take on your day with the help of natural energy from green tea. It's also packed with Vitamin C so you can recharge and do it all again tomorrow. Each packet has as much caffeine as one cup of coffee (120 mg per 16-ounce serving) and 100% of your daily required Vitamin C. Made with simple, non-GMO ingredients. True Lemon® Energy Drink.Mixes are sugar free, gluten free, and come in delicious flavors like Wild Cherry Cranberry. Blueberry Acai. Wild Blackberry Pomegrante, and Strawberry Dragonfruit.