Natural Factors Stress-Relax Magnesium Citrate Powder - Tropical Fruit Flavour - An effective way to meet the body’s daily magnesium requirements. Magnesium helps the body metabolize carbohydrates, fats, and proteins. It also helps in tissue formation, and helps maintain bones, teeth, and proper muscle function. Inadequate magnesium intake can heighten the symptoms of stress, including muscle tension and sleep disturbances. Magnesium deficiency is considered widespread in North America, and a lack of magnesium is associated with higher levels of irritability, insomnia, fatigue, cramps, migraine headaches, constipation, and osteoporosis. Magnesium is vital for the health of the brain, and low magnesium levels are also associated with poor sleep quality, irritability, and increased feelings of stress.