Is oral magnesium sulphate hydrate still worth buying as a supplement, or should buyers switch to other magnesium forms?

Is oral magnesium sulphate hydrate still worth buying as a supplement, or should buyers switch to other magnesium forms?
Magnesium sulphate hydrate, the classic Epsom salt, carries only about 9.7 percent elemental magnesium and shows poor oral bioavailability, roughly 10 to 15 percent. That combination makes it a weak choice for dietary supplementation. Chinese nutrition surveys suggest around 60 percent of the population under-consumes magnesium, so demand for supplements is real, but the hydrate is better positioned for external use, such as bath salts and sprays for muscle soreness. Oral magnesium buyers increasingly favour citrate, glycinate, threonate or taurate, which offer better absorption and less laxative effect. For magnesium sulphate hydrate suppliers, this means the growth is in personal care and topical applications, not in the supplement capsule segment.