Hydration

For each one: how to use it, the best version, how to prepare it, what it does, and where it goes wrong.

Lacto-fermented beetroot juice

Nitrate from beetroot becomes nitric oxide in your body, and that opens your blood vessels. The only drink on this page with a measured drop in blood pressure behind it.

How to use it: A small glass a day, ideally at a fixed moment. If you use it before exercise, drink it a couple of hours ahead.
Glycemic index: No reliable value for beetroot juice appears in the tables. The beetroot itself sits mid-range, and a glass of juice reaches your blood faster than a boiled one.

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