The drink’s formulation includes water, acidity regulator (sodium citrate), and acid (citric acid) to balance pH. Natural flavourings, along with extracts of apple, safflower, and lemon, provide its distinctive citrus taste and colour. Sweeteners such as acesulfame K and sucralose offer sweetness without extra calories. Stabilisers like acacia gum ensure consistency, while coconut oil helps maintain the drink’s clarity. Niacin (vitamin B3) is included to support energy metabolism.​

Lucozade Sport Zero Citrus contains sweeteners, including acesulfame K and sucralose. While the drink is generally free from common allergens like dairy, gluten, and nuts, it’s advisable to consult the product label for specific allergen information. The bottle’s sports cap is not suitable for children under 3 years due to choking hazards.