Magnesium is essential for numerous bodily functions, including calcium, potassium, and salt absorption. It regulates cholesterol and may help protect against type 2 diabetes, as studies show improved blood sugar management in diabetics who took magnesium supplements. This nutrient also supports bone health by working with vitamin D and calcium, potentially preventing osteoporosis. Additionally, magnesium promotes relaxation, aids digestion, and alleviates stress, anxiety, and depression. Research links low magnesium levels with a higher risk of depression due to diet. Magnesium also stabilizes heart rhythm and helps maintain blood vessel elasticity, which affects blood pressure. Deficiency symptoms include persistent tiredness, muscle cramps, and weakness.