Ultima

Lipsa Shah, a certified personal trainer and yoga teacher, recommends Ultima Replenisher as a sports drink for those looking to lose weight because it’s sugar-free and zero-calorie. 

“I turn to Ultima when I have a long day of teaching hot yoga in a 100-plus degree room and personal training,” Shah tells CNET. “Electrolytes are essential for muscle functioning and keeping you performing your best and [Ultima] gives you that without the calories.”

Ultima Replenisher has no sugar or artificial sweeteners — it’s sweetened with stevia — and the first ingredient listed on the powder packets is magnesium citrate, which is a good indicator that this product is high-quality. Magnesium is one of the electrolytes lost through sweat; that it’s the first ingredient on the list means it is the most prevalent ingredient by volume in Ultima Replenisher. 

Ultima powder also contains calcium, zinc, manganese, chloride, potassium, sodium and phosphorous — all essential nutrients that need replenishing after a good sweat.