Used as a laxative to relieve constipation by drawing water into the intestines and stimulating bowel movements. Commonly used in agriculture to correct magnesium deficiency in soil, improving plant growth and chlorophyll production. Employed in medical settings to treat magnesium deficiency, control seizures in pregnant women with preeclampsia or eclampsia, and manage certain heart rhythm disorders. Applied in bath salts to soothe sore muscles and reduce inflammation. Used in brewing and fermentation processes to supply essential magnesium ions for yeast activity. Also utilized in aquariums and hydroponic systems to maintain proper magnesium levels for aquatic plants and animals.