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Magnesium Oxide 500 mg

AN Amazing Nutrition Amazing Formulas
4.5
(918 ratings)
Magnesium 500 mg
Product Image
Score 38.0

An affordable Magnesium Oxide supplement with high elemental content but poor bioavailability for systemic health benefits, primarily serving as a laxative rather than a comprehensive magnesium source.

Quantity: 90 Capsule(s)Servings size: 1 Capsule(s) (90 servings)
Selected goals:
Other goals:
Stress Relief
Mood Support
Bone Health
Sleep Support
General Health

Score 38.0

An affordable Magnesium Oxide supplement with high elemental content but poor bioavailability for systemic health benefits, primarily serving as a laxative rather than a comprehensive magnesium source.

Analysis

AN Amazing Nutrition Amazing Formulas Magnesium Oxide 500 mg is an affordable magnesium supplement primarily composed of Magnesium Oxide. While it offers a high elemental magnesium content per dose, Magnesium Oxide is well-documented by nutritionists and scientific literature as having low bioavailability compared to other magnesium forms like citrate, glycinate, or malate. This means that a large percentage of the magnesium in this form passes through the digestive system unabsorbed, often leading to a laxative effect rather than systemic benefits. Consequently, its efficacy for broad health goals such as energy production, stress reduction, and bone health is significantly diminished. Online reviews sometimes reflect mixed results, with some users reporting digestive upset or not noticing significant benefits for general well-being, while others find it useful for occasional constipation due to its osmotic properties.

Pros
  • Very cost-effective, offering a high dose of elemental magnesium at a low price point.
  • Can be effective for occasional constipation due to its osmotic properties.
Cons
  • Low bioavailability, meaning a significant portion of the magnesium is not absorbed and utilized by the body for systemic health benefits.
  • May cause gastrointestinal distress or laxative effects in some individuals due to poor absorption.
  • Less effective for supporting specific health goals like energy, sleep, or mood compared to more bioavailable forms.
Warnings
  • High doses of magnesium oxide can cause diarrhea or gastrointestinal upset.
  • Individuals with kidney issues should consult a healthcare professional before taking magnesium supplements.
$9.99($0.11 per serving)
iHerb
$ 10.99
Vitacost
$ 10.19
Amazon
$ 9.99
Ingredients
IngredientAmount per serving
Magnesium 500 mg
Adults 18–50
Categories
Magnesium 35.0
While this product provides magnesium, its form (Magnesium Oxide) is widely recognized for its poor absorption and lower efficacy compared to other magnesium compounds commonly available in the market. Many alternatives offer superior bioavailability, making them a better choice for most magnesium supplementation needs.
Goals
General Health 30.0
Magnesium is vital for over 300 biochemical reactions in the body. However, Magnesium Oxide's low absorption rate significantly limits its contribution to overall general health compared to more bioavailable forms of magnesium, as most of it may not reach systemic circulation.
Energy 25.0
Magnesium is crucial for ATP production and energy metabolism at the cellular level. Due to its poor absorption, Magnesium Oxide is unlikely to provide sufficient systemic magnesium to effectively support energy levels or combat fatigue.
Stress Relief 25.0
Effective stress relief from magnesium requires the mineral to be absorbed and influence neurotransmitter function and muscle relaxation. The low bioavailability of Magnesium Oxide makes it a less suitable choice for achieving significant systemic stress-reducing effects.
80 Value

Triple Magnesium Complex 400 mg

Swanson
4.8
(15585 ratings)
This alternative combines Magnesium Oxide with more bioavailable forms like Magnesium Citrate and Magnesium Aspartate. It delivers this improved blend at a lower price per serving than the original Magnesium Oxide product, offering much better absorption and effectiveness for the cost.
85 Value

Chelated Magnesium 133 mg

Swanson
4.8
(5354 ratings)
Although the elemental magnesium per capsule is lower, this product contains TRAACS Magnesium Bisglycinate Chelate, which is one of the most highly absorbed and gentle forms of magnesium, especially beneficial for stress relief and sleep without gastrointestinal upset. At a significantly lower price per serving, it offers excellent value for its superior bioavailability.
78 Value

Triple Magnesium Complex 400 mg

Swanson Premium Brand
4.8
(15542 ratings)
This product offers a triple blend of Magnesium Oxide, Citrate, and Aspartate, which provides better absorption than pure Magnesium Oxide. It delivers this improved formulation at the same price per serving as the original product, making it a direct upgrade in terms of quality for the same cost.
95 Performance

Magnesium & Calcium

NOW
4.8
(16706 ratings)
This product features an excellent blend of highly bioavailable magnesium forms (Taurinate, Glycinate, Citrate) ensuring superior absorption compared to Magnesium Oxide. It also includes Calcium and Vitamin D3, providing comprehensive support for bone health, muscle function, and nerve health, making it a much more effective choice for a wide range of magnesium-related goals.
92 Performance

Cal/Mag/Vit D3 with Vitamin K2

NaturesPlus
4.6
(2209 ratings)
This comprehensive formula contains Magnesium Amino Acid Chelate, a highly bioavailable form, along with essential co-factors like Calcium, Vitamin D3, and Vitamin K2. This combination is particularly effective for bone density, cardiovascular health, and overall mineral balance, offering a significant upgrade over basic magnesium oxide.
88 Performance

Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates

Country Life
4.7
(4315 ratings)
This alternative provides a beneficial blend of well-absorbed magnesium forms (Taurinate, Citrate, Aspartate, Alpha-Ketoglutarate) which offer better bioavailability for various bodily functions. The inclusion of Potassium also adds value for electrolyte balance and muscle support.
80 Performance

100% Pure Magnesium Citrate Powder

Swanson Premium Brand
4.3
(430 ratings)
Magnesium Citrate is a highly bioavailable form, often preferred for its absorption and mild laxative effect if needed. The powder form offers flexibility in dosing and can be mixed into beverages.
55 Budget

Magnesium 500 mg

Nature's Bounty
4.7
(95048 ratings)
This alternative provides the same 500 mg dose of Magnesium Oxide as the original product but at a significantly lower price per serving, making it a more economical choice if Magnesium Oxide is the desired form.
54 Budget

Magnesium 500 mg

Sundown
4.7
(30035 ratings)
Similar to other basic Magnesium Oxide options, this Sundown product offers an identical dosage and form to the original but at a notably reduced price per serving, presenting a cheaper like-for-like alternative.
53 Budget

Magnesium 250 mg

21st Century
4.7
(63969 ratings)
This product offers Magnesium Oxide at a very low price per serving, along with a small amount of Calcium. While the per-pill magnesium dose is lower than the original, it's more cost-effective for elemental magnesium if purchasing by serving.
90 Value

Magnesium Caps 500 mg

Life Extension
4.8
(71611 ratings)
This product provides a potent blend of highly bioavailable magnesium forms, including TRAACS Magnesium Lysyl Glycinate Chelate, Succinate, and Citrate, alongside Oxide. Crucially, it offers this superior formulation at a lower price per serving than the original product, representing exceptional value for enhanced absorption and efficacy across all listed health goals.
80 Value

Triple Magnesium Complex 400 mg

Swanson
4.8
(15585 ratings)
This alternative combines Magnesium Oxide with more bioavailable forms like Magnesium Citrate and Magnesium Aspartate. It delivers this improved blend at a lower price per serving than the original Magnesium Oxide product, offering much better absorption and effectiveness for the cost.
85 Value

Chelated Magnesium 133 mg

Swanson
4.8
(5354 ratings)
Although the elemental magnesium per capsule is lower, this product contains TRAACS Magnesium Bisglycinate Chelate, which is one of the most highly absorbed and gentle forms of magnesium, especially beneficial for stress relief and sleep without gastrointestinal upset. At a significantly lower price per serving, it offers excellent value for its superior bioavailability.
78 Value

Triple Magnesium Complex 400 mg

Swanson Premium Brand
4.8
(15542 ratings)
This product offers a triple blend of Magnesium Oxide, Citrate, and Aspartate, which provides better absorption than pure Magnesium Oxide. It delivers this improved formulation at the same price per serving as the original product, making it a direct upgrade in terms of quality for the same cost.
95 Performance

Magnesium & Calcium

NOW
4.8
(16706 ratings)
This product features an excellent blend of highly bioavailable magnesium forms (Taurinate, Glycinate, Citrate) ensuring superior absorption compared to Magnesium Oxide. It also includes Calcium and Vitamin D3, providing comprehensive support for bone health, muscle function, and nerve health, making it a much more effective choice for a wide range of magnesium-related goals.
92 Performance

Cal/Mag/Vit D3 with Vitamin K2

NaturesPlus
4.6
(2209 ratings)
This comprehensive formula contains Magnesium Amino Acid Chelate, a highly bioavailable form, along with essential co-factors like Calcium, Vitamin D3, and Vitamin K2. This combination is particularly effective for bone density, cardiovascular health, and overall mineral balance, offering a significant upgrade over basic magnesium oxide.
88 Performance

Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates

Country Life
4.7
(4315 ratings)
This alternative provides a beneficial blend of well-absorbed magnesium forms (Taurinate, Citrate, Aspartate, Alpha-Ketoglutarate) which offer better bioavailability for various bodily functions. The inclusion of Potassium also adds value for electrolyte balance and muscle support.