Science in Sport PLC is engaged in developing, manufacturing, and marketing sports nutrition products for professional athletes and sports enthusiasts. Its reportable segments are the two brands, SiS and PhD Nutrition. The company's product lines under SiS include Energy Bars, shots, gels & powders; Hydration Gels, tablets, and powders; Recovery Powder; Rebuild Powders, gels, and bars; and Athlete health Vitamins, & supplements. The PhD Smart Range includes the Smart Bar, an on-the-go protein hit, the multi-use Smart Protein suitable for cooking with, a ready-to-drink Smart Protein shake, and an oven-baked high protein flapjack, Smartjack. Its geographical segments are the United Kingdom, Europe, Australia, and the Rest of the World.