Lifestream Natural Magnesium is a naturally derived marine source extracted from seawater which naturally contains magnesium salts. It is manufactured by filtration, blending and heat drying without the need for adding preservatives or chemical products to form a highly bio-available and concentrated dose of elemental magnesium. Lifestream Natural Magnesium powder is tasteless and provides 350mg of magnesium in a one-third teaspoon dose and is designed to offer the benefits of a Magnesium supplement from a natural source. This product supports energy production, muscle and nerve function, bone health and density, healthy bowel function, and the metabolism of fats, protein and carbohydrates. Despite the essential nature of magnesium, there is no specific food that provides a high amount of magnesium. Good sources of magnesium include whole grains, spinach, nuts, legumes and potatoes. Even with the wide availability of magnesium in foods, at least 60% and possibly as much as 80% of adults do not consume the Recommended Dietary Intake (RDI) for magnesium (310-420mg/day). In addition, absorption of magnesium from the small intestine decreases and excretion by the kidneys increases as we age. Symptoms of magnesium deficiency include loss of appetite, nausea, vomiting, fatigue and weakness. Suitable for vegetarians and vegans, gluten free, with no artificial additives, fillers, preservatives, colours or flavours.