Day One

Day One's range covers several categories of sports nutrition: Drift and ZMA are positioned around sleep and recovery, Tonic and Relief around general recovery support, Drive around energy and performance, Eclipse for Him and Eclipse for Her are separate men's and women's performance formulas, and Plant Isolate is a hydrolysed plant protein powder.

ZMA combines magnesium, zinc and vitamin B6 — three nutrients with established roles in muscle function, electrolyte balance and energy metabolism.

We haven't independently verified the specific ingredient claims made for Tonic, Relief, Eclipse or Drive, so this page describes what each product is for in general terms rather than restating the brand's specific benefit claims. If you want to know exactly what's in a particular product, check the product's own label.

This is general product information, not medical advice.

Where a practitioner changes the answer: With eight products spanning sleep, recovery, performance and hormone-adjacent formulas, starting more than one at once makes it hard to tell which is actually doing anything. Our practitioners can help you start with one and adjust from there, including via the free 10-minute consult.