The beverage is crafted from water and glucose syrup as primary energy sources. Citric acid is included for tartness, while sodium citrate acts as an acidity regulator. Potassium sorbate is used as a preservative to maintain freshness. The drink is sweetened with aspartame and acesulfame K, and flavoured to enhance taste. It contains antioxidants like ascorbic acid and stabilisers such as acacia gum and glycerol esters of wood rosins. The drink is fortified with vitamins including niacin (Vitamin B3), pantothenic acid (Vitamin B5), vitamin B6, and vitamin B12. Beta carotene is added for colouring. ​

Lucozade Sport Caribbean Burst does not list any major allergens such as milk, eggs, gluten, nuts, or soy in its ingredients. However, it contains aspartame, a source of phenylalanine, making it unsuitable for individuals with phenylketonuria (PKU). As formulations can change, it’s advisable to check the product label for the most current allergen information before consumption.