Stackexpand_less
Analysisexpand_less
Please sign in to access analysis.
Profileexpand_less
Supplementsexpand_more
Extra Strength Magnesium 400 mg
Nature Made
3.5
★ ★ ★ ★ ★
(240 ratings)
Magnesium 400 mg
Score 45.0
A high-dose magnesium oxide softgel from a reputable brand, but its poor absorption limits systemic benefits.
Quantity: 60 Softgel(s)Servings size: 1 Softgel(s) (60 servings)
Selected goals:
Other goals:
General Health
Energy
Stress Relief
Heart Health
Bone Health
leaderboard Score 45.0
A high-dose magnesium oxide softgel from a reputable brand, but its poor absorption limits systemic benefits.
Quantity: 150
Nature Made Extra Strength Magnesium 400 mg comes in a softgel form and contains magnesium oxide. While it provides a substantial elemental dose of 400mg, magnesium oxide is widely known for its very low absorption rate (around 4%) when ingested, meaning most of it passes through the digestive system without entering the bloodstream. This makes it less effective for broader health benefits that require systemic magnesium. Nature Made is a highly trusted brand, often with USP verification, which speaks to its quality manufacturing, but the form of magnesium is a critical limitation for efficacy in systemic applications.
- From a highly reputable and often USP-verified brand (Nature Made).
- Provides a high elemental dose of magnesium per serving.
- Softgel form may be easier to swallow for some.
- Composed solely of magnesium oxide, which has very poor systemic bioavailability.
- Ineffective for addressing widespread magnesium deficiency or systemic health goals.
- Can cause laxative effects, particularly at higher doses.
$11.29($0.18 per serving)
 Vitacost | $ 11.29 | |
 Walmart | $ 16.78 | |
 iHerb | $ 13.04 |
| Ingredient | Amount per serving |
|---|---|
| Calories | 10 Calorie(s) |
| Total Fat | 0.5 Gram(s) |
| Magnesium (Magnesium Oxide) | 400 mg |
Categories
Magnesium 45.0
In the magnesium category, this product is limited by its use of magnesium oxide, a form with poor systemic absorption, despite being from a top brand and offering a high elemental dose.
Goals
General Health 45.0
Despite a high elemental dose, the limited systemic absorption of magnesium oxide significantly hinders its contribution to overall general health and bodily functions.
Energy 40.0
Effective energy production requires well-absorbed magnesium, which the magnesium oxide form does not efficiently provide, thus limiting its impact on energy levels.
Heart Health 40.0
Supporting heart health relies on systemic magnesium availability, which is poorly delivered by the magnesium oxide form in this product.
Recommended Alternatives
75 Value 
Triple Magnesium Complex 400 mg
Swanson
4.8
★★★★★
(15585 ratings)
Combines magnesium oxide with more bioavailable forms like citrate and aspartate at a significantly lower price per serving, offering a better balance of absorption and cost.
95 Value 
Magnesium Caps 500 mg
Life Extension
4.8
★★★★★
(71611 ratings)
Delivers a premium, highly absorbable blend of magnesium forms at a very low price per serving, making it an outstanding value for superior quality.
80 Value 
100% Pure Magnesium Citrate Powder
Swanson Premium Brand
4.3
★★★★★
(430 ratings)
Provides magnesium citrate, a much better absorbed form, in a versatile powder format. While higher in price per serving, it offers significantly improved bioavailability for the cost.
95 Performance
Magnesium Caps 500 mg
Life Extension
4.8
★★★★★
(71611 ratings)
Features a superior blend of highly bioavailable magnesium forms (Lysyl Glycinate Chelate, Succinate, Citrate) for significantly better absorption compared to magnesium oxide.
92 Performance 
Magnesium & Calcium
NOW
4.8
★★★★★
(16706 ratings)
Offers a comprehensive blend of well-absorbed magnesium forms like Glycinate, Taurinate, and Citrate, providing superior systemic benefits over magnesium oxide.
95 Performance 
Chelated Magnesium 133 mg
Swanson
4.8
★★★★★
(5354 ratings)
Utilizes TRAACS Magnesium Bisglycinate Chelate, a premium and highly absorbable form known for gentleness on the stomach, far surpassing the bioavailability of magnesium oxide.
40 Budget 
Magnesium 500 mg
Nature's Bounty
4.7
★★★★★
(95048 ratings)
Offers a similar, widely available magnesium oxide form at a significantly lower price per serving, making it a much more economical choice.
40 Budget 
Magnesium 250 mg
21st Century
4.7
★★★★★
(63969 ratings)
Provides a magnesium oxide supplement at a substantially lower price per serving, from a different budget-friendly brand.
40 Budget 
Magnesium 500 mg
Sundown
4.7
★★★★★
(30035 ratings)
Delivers magnesium oxide at a considerably lower price per serving, offering a more cost-effective alternative from another mass-market brand.
75 Value
Triple Magnesium Complex 400 mg
Swanson
4.8
★★★★★
(15585 ratings)
Combines magnesium oxide with more bioavailable forms like citrate and aspartate at a significantly lower price per serving, offering a better balance of absorption and cost.
95 Value
Magnesium Caps 500 mg
Life Extension
4.8
★★★★★
(71611 ratings)
Delivers a premium, highly absorbable blend of magnesium forms at a very low price per serving, making it an outstanding value for superior quality.
80 Value
100% Pure Magnesium Citrate Powder
Swanson Premium Brand
4.3
★★★★★
(430 ratings)
Provides magnesium citrate, a much better absorbed form, in a versatile powder format. While higher in price per serving, it offers significantly improved bioavailability for the cost.
95 Performance
Magnesium Caps 500 mg
Life Extension
4.8
★★★★★
(71611 ratings)
Features a superior blend of highly bioavailable magnesium forms (Lysyl Glycinate Chelate, Succinate, Citrate) for significantly better absorption compared to magnesium oxide.
92 Performance
Magnesium & Calcium
NOW
4.8
★★★★★
(16706 ratings)
Offers a comprehensive blend of well-absorbed magnesium forms like Glycinate, Taurinate, and Citrate, providing superior systemic benefits over magnesium oxide.
95 Performance
Chelated Magnesium 133 mg
Swanson
4.8
★★★★★
(5354 ratings)
Utilizes TRAACS Magnesium Bisglycinate Chelate, a premium and highly absorbable form known for gentleness on the stomach, far surpassing the bioavailability of magnesium oxide.