Beverage Hydration Index (BHI)

Understanding how different fluids impact fluid retention over time.

What is BHI?

The Beverage Hydration Index measures how much fluid is retained in the body two hours after consumption, compared to plain water. A higher index means the fluid stays in your system longer, often due to electrolyte content or energy density.

Still Water

The Baseline

1.0

Skim Milk

Electrolytes & Protein

1.5

Coffee (Black)

Diuretic Effect

0.9

Oral Rehydration Sol.

Clinical Formula

1.55

Orange Juice

Sugars & Potassium

1.3

Sports Drinks

Isotonic Mix

1.2

Expert Insight

While milk and ORS have higher BHI values than water, plain water remains the best source for daily hydration because it has zero calories and is pH neutral. Higher BHI fluids are specifically useful for recovery from dehydration or prolonged physical exertion.

Use water for 80% of daily fluids.

Use BHI+ drinks after intense sweat.