Give yourself a functional energy boost whether pre-workout, studying or just on the road with Heat Functional Energy from Nutramino. Each 350ml is carbonated and contains 13 active ingredients including 182mg of caffeine to help increase focus and alertness. Functional Energy is also sugar free, calorie free and aspartame free and is available in two great flavours, Orange and Melon & Apple. Give yourself a functional energy boost whether pre-workout, studying or just on the road with Heat Functional Energy from Nutramino. Each 350ml is carbonated and contains 13 active ingredients including 182mg of caffeine to help increase focus and alertness. Functional Energy is also sugar free, calorie free and aspartame free and is available in two great flavours, Orange and Melon & Apple. 182mg of caffeine per 350ml can. Caffeine increases focus and alertness. Added taurine and vitamins A, D, E, K, B6 and B12. Calorie, sugar and aspartame free. Available in two great tasting flavours, Orange and Melon & Apple. Sugar-free, calorie-free and aspartame free energy drink to help increase focus and alertness