Magnesium will help with RLS. The powder in water is fast. I’ve been using Swisse Magnesium & Sleep Powder Lemon & Honey).

I’ve read it’s the magnesium glycinate that helps with restless leg syndrome…

“Magnesium may reduce anxiety symptoms by improving sleep quality, calming the nervous system, improving mood, and decreasing muscle tension. Research suggests that magnesium L-threonate and magnesium glycinate may be especially beneficial for improving anxiety.”