Jamieson Magnesium 100 mg is a highly absorbable complex of five magnesium sources that helps to develop strong bones and supports heart health and muscle function. Directions Adults: Take 1 tablet twice daily with a meal. Store between 15°C and 25°C, away from children. Serving Size 1 tablet, 2 times daily Quantity 100 tablets Ingredient Information Nutrient Information Elemental Magnesium 100 mg (From a highly absorbable natural magnesium complex source of oxide, citrate, fumarate, malate, succinate) Also Contains Cellulose, silica, vegetable stearic acid, sorbitol, water-soluble cellulose, hydroxypropyl cellulose, titanium dioxide. NO salt (NaCl), sugar, starch, gluten, lactose, artificial flavours or preservatives. Warning Excess magnesium may cause diarrhea, nausea, and stomach cramps. Individuals who have difficulty processing high doses of magnesium could develop muscle weakness, confusion, or lethargy. Consult a health care practitioner prior to use if you are pregnant or breast-feeding.