Hydration Industry

The three largest bottled water companies — Nestlé, Coca-Cola, and PepsiCo — also sell ultra-processed foods and sugary beverages. The cultural pressure to drink large quantities of water constantly originated from a government-corporate campaign called 'Drink Up' that steered consumers toward bottled water. Thirst is a reliable physiological signal for hydration needs, not a lagging indicator of dangerous dehydration. Messaging that constant drinking is necessary ignores the body's adaptive mechanisms for water restriction and serves commercial interests rather than health.