Electrolytes + BCAA

Why this matters

Electrolytes regulate how water moves in and out of cells. Without them, hydration does not reach the places it needs to.

Even mild dehydration affects the brain before physical symptoms appear. A deficit of one to two percent of body weight in water produces measurable decline in attention and working memory.

BCAAs are amino acids the body cannot produce on its own. When meals are missed or delayed, they provide a fast energy source and prevent the body from breaking down muscle protein instead.

What happens in the body

The brain requires a precise fluid environment to function reliably.
Electrolytes, mainly sodium, potassium, and magnesium, maintain the concentration gradients across cell membranes that nerve signals depend on.

Without electrolytes, fluid is less effectively absorbed into cells. This matters most in dehydrating environments like aircraft cabins, where humidity runs between ten and twenty percent and passive fluid loss is continuous throughout a flight.

BCAAs are metabolised directly in muscle tissue, making them a fast and practical energy source when meals are not possible.

When this becomes relevant

Long-haul flights with limited food. Long working days with coffee as the primary fluid. Physical shifts where sweat loss and missed meals both build across the hours.