Swanson Magnesium Oxide 200mg is one of the most widely available forms of this mineral on the supplement market. Two capsules per day with meals is an easy way to add magnesium to your daily diet without unnecessary ingredients.
What is magnesium oxide and what is it used for?
Magnesium oxide (MgO) is an inorganic magnesium compound with a relatively high percentage of elemental magnesium in the molecule: about 60% by weight. This means that in one 200 mg capsule, the concentration of the mineral itself is quite high compared to organic forms.
Magnesium is involved in hundreds of enzymatic reactions in the body. Its presence in the diet is associated with maintaining normal muscle and nervous system function, as well as maintaining healthy bones. Swanson Magnesium Oxide is positioned as a supplement to support muscle and bone health, cardiovascular health, and to maintain normal blood glucose levels and blood pressure within the physiological range.
How is magnesium oxide absorbed?
Magnesium oxide is a form with lower bioavailability compared to the organic forms: citrate, glycinate or malate. Studies indicate that the absorption of magnesium oxide from the intestine is approximately 4-18% depending on individual characteristics, gastric juice pH and the state of the gastrointestinal tract. For comparison: magnesium citrate demonstrates absorption in the range of 25-30% and higher.
At the same time, it is precisely because of its low solubility that magnesium oxide is widely used as a mild osmotic agent to support normal bowel function - this property is well documented. For those seeking maximum systemic intake of the mineral, organic forms may be more appropriate; magnesium oxide is the choice of those who are focused on an affordable price and a large packaging volume (250 capsules).
Composition and form of release
- Magnesium oxide: 200 mg per capsule
- Number of capsules: 250 pieces per package
- Recommended serving: 2 capsules per day - with food and water
- Elemental Magnesium (estimated): approximately 120 mg per serving of 2 capsules
- Form: gelatin capsules
- Additional ingredients: rice flour, gelatin, magnesium stearate
The composition is minimalist: no dyes, no artificial flavors, no gluten in the active part. The gelatin shell is of animal origin, which is important to consider for vegetarians and vegans.
How much magnesium oxide should you take per day?
Swanson recommends taking two capsules per day with food and water. This is 400 mg of magnesium oxide or about 120 mg of elemental magnesium per serving. The recommended daily intake of magnesium for adults is 310-420 mg depending on gender and age (according to EFSA and NIH standards). Thus, a serving covers approximately 28-39% of the daily requirement.
Taking with food reduces the likelihood of gastrointestinal discomfort, which is typical of the oxide form when taken on an empty stomach. If there is individual sensitivity, it is worth starting with one capsule per day.
Who is this format suitable for?
A 250-capsule package is designed for 125 days of intake with a standard regimen - more than four months. This volume is convenient for those who include magnesium in a regular diet and do not want to replenish supplies often. Swanson has been producing supplements since 1969 and positions its products as scientifically based - it is one of the brands with a long presence in the American nutraceutical market.
Swanson Magnesium Oxide is an option for those looking for an affordable daily source of the mineral in a large package, without the claims of premium bioavailability. If maximum absorption or a gentler effect on the gut is a priority, consider other forms: magnesium citrate, glycinate, or malate.
Storage conditions
Store in a dry place at room temperature, protected from direct sunlight and moisture. Keep out of reach of children. Do not exceed the recommended dose. This is a dietary supplement, not a medicine.
