Water is sometimes described as the forgotten nutrient, as it plays a vital role in bodily functions from delivering nutrients to regulating body temperature. The Institute of Medicine (IOM) recommends that men consume 3.7 liters per day and women 2.7 liters per day of fluid, while the European Food Safety Authority (EFSA) advises 2.5 liters per day for men and 2 liters per day for women. Despite these guidelines, many individuals do not consistently achieve the recommended intake, increasing the risk of dehydration. 

Research indicates that a fluid loss equivalent to 1% of body mass can impair cognitive and aerobic performance under heat stress. When body mass fluid loss reaches 2%, measurable declines in both cognitive and aerobic function occur. At 3%-5% body mass fluid loss, anaerobic and sport-specific skills — such as weightlifting, sprinting and interval training — are significantly compromised. 

Liquid I.V.® is a functional hydration company based in Los Angeles, California, and was acquired by Unilever in 2020. Liquid I.V. is the No. 1 powdered hydration brand in America* and is now available in eight countries. The product line features great-tasting electrolyte drink mixes for enhanced hydration. 

Liquid I.V. Hydration Multiplier® features an optimized ratio of glucose and electrolytes to ensure rapid water absorption. Plus, Hydration Multiplier is available in delicious flavors, showcasing how great taste can help people achieve their fluid consumption goals. 

Liquid I.V.’s hydration science builds on a growing body of research exploring fluid absorption, electrolyte balance and hydration mechanisms. This includes preclinical work alongside human clinical studies designed to evaluate hydration efficacy compared with water alone. As part of this program, Liquid I.V. has seven completed or ongoing clinical trials specifically investigating sugar-free formulas, demonstrating a commitment to advancing evidence‑based solutions that support daily hydration. 

From the lab to the shelf, from athletes to everyday people, Liquid I.V. turns hydration into a reliable, science-backed and personalized experience. With each sip, the promise is simple: Hydration without compromise, designed for wherever you are and whatever your day demands. 

Connect with Liquid I.V. via email: wellbeingscience@unilever.com. 

*Liquid I.V. is the No. 1 ranked brand by Dollar Share of Category (Functional Hydration– Powders) in Total US MULO+ with Conv. in all periods ending Nov. 8, 2025.