Source Naturals Ultra-Mag, 240 Tablets (Pack of 2)

Customers find this magnesium supplement effective for various conditions, including restless legs, muscle aches, and sleep quality. The product receives positive feedback for its quality, with one customer highlighting its high-quality magnesium content. The pill size receives mixed reactions, with several customers finding them too large to swallow. Customers report mixed experiences with muscle support, with some noting dramatic relief from calf cramps while others experienced stomach discomfort.