Mag-Tab® SR Magnesium Supplements

Mag-Tab® SR is a sustained-release magnesium supplement formulated with magnesium L-lactate dihydrate, a form chosen for its digestive tolerance and steady absorption. The controlled-release design releases magnesium gradually over several hours, which helps reduce the loose stools and stomach upset that some people experience with faster-dissolving magnesium products. That makes it a practical option for anyone advised by a clinician to raise their magnesium intake and maintain it consistently.

Magnesium plays a role in hundreds of processes in the body, including nerve function, muscle contraction, heart rhythm, and bone health. People who take diuretics, certain reflux medications, or who have conditions that deplete magnesium are often the ones reaching for a dependable oral supplement. The Mag-Tab Magnesium Supplement (NDC-style item 59016042019) delivers a measured dose per caplet, so it's easy to follow a clinician's recommended daily amount without guesswork.

A common question is how L-lactate compares with other salts. Magnesium oxide is inexpensive but poorly absorbed and more likely to cause GI discomfort; the L-lactate in Mag-Tab® SR is generally better tolerated, and the sustained-release matrix spaces out delivery to further ease the digestive tract. Take it with a full glass of water, ideally with food, and space doses as directed rather than taking a large amount at once.

If you're comparing magnesium formulations, it's worth looking at related sustained-release options such as Mag 64 and Slow-Mag, both of which use tolerable magnesium salts in extended-release tablets. Reviewing these alongside Mag-Tab® SR can help you and your healthcare provider settle on the dose and form that fit your needs.