SuppHelper
search
Home›Supplements›Mineral›Magnesium›Magnesium 350 mg Carlson
Product Image

Magnesium 350 mg

Carlson
4.8
★ ★ ★ ★ ★
(1686 ratings)
Magnesium 350 mg
Product Image
Score 62

A high-dose magnesium oxide capsule (350mg) in an economical larger size, offering low price and digestive support, but with limited systemic absorption.

scaleQuantity:180 Capsule(s) • (180 servings)
track_changesGoals:
flag Digestive Health
flag General Health
flag Bone Health
flag Cardiovascular Support
flag Energy
flag Fitness
flag Heart Health
flag Sleep Support

leaderboard Score 62

A high-dose magnesium oxide capsule (350mg) in an economical larger size, offering low price and digestive support, but with limited systemic absorption.

Also available as 1 option
90 servings Magnesium 350 mg • 90 Capsule(s) • 90 servings $9.95 ($0.11 per serving)

insightsAnalysis

This larger count bottle of Carlson's Magnesium 350 mg delivers elemental magnesium as magnesium oxide. It offers the same consistent 350mg dosage in a more cost-effective package, making it an attractive option for those looking to purchase in bulk. The capsule form is also convenient for daily intake.

As with all magnesium oxide products, its main characteristic is low systemic absorption. While it contains a substantial amount of elemental magnesium, most of it does not get absorbed for use by the body's cells. Instead, it typically functions as a gentle osmotic laxative, drawing water into the intestines to support bowel regularity.

For individuals seeking a very inexpensive high-dose magnesium primarily for digestive support, this product presents a strong value proposition due to its price per serving. However, for deep, systemic magnesium repletion aimed at supporting muscle, nerve, or bone health, alternative, more bioavailable forms of magnesium would likely be more effective.

thumb_upPros
  • Offers a solid 350mg elemental magnesium dose.
  • Excellent price per serving in the larger quantity.
  • Can be effective for promoting bowel regularity.
  • Capsule form is generally easy to take.
thumb_downCons
  • Uses magnesium oxide, which has very low bioavailability.
  • Less effective for supporting systemic magnesium needs.
  • May cause digestive upset or laxative effects in sensitive individuals.
warningWarnings
  • May lead to loose stools or diarrhea, especially with higher doses.
  • Not ideal for long-term magnesium repletion for systemic health benefits.
  • Individuals with kidney issues should consult a healthcare professional before use.
flagReport analysis
$18.28($0.10 per serving)
Pure Formulas
$ 18.28
iHerb
$ 18.28
Walmart
$ 18.28
Vitacost
$ 18.28
flagReport prices
track_changesGoals
flagDigestive Health
Impact
High effect
Magnesium oxide is commonly used as a laxative to promote bowel regularity. Therefore, it is quite effective for digestive health, specifically for occasional constipation.
View goal →
flagGeneral Health
Impact
Moderate effect
While it provides elemental magnesium, the poor absorption of the oxide form means it offers limited systemic support for general health compared to other, more bioavailable forms.
View goal →
flagHeart Health
Impact
Moderate effect
While magnesium supports heart health, the low bioavailability of magnesium oxide limits its effectiveness for providing robust systemic cardiovascular support compared to other options.
View goal →
flagCardiovascular Support
Impact
Moderate effect
Magnesium oxide is not optimally absorbed to provide robust cardiovascular support. Other forms are generally recommended for maintaining healthy blood pressure and heart function.
View goal →
flagFitness
Impact
Moderate effect
Magnesium is vital for muscle function and energy. However, the poor absorption of magnesium oxide makes it a less efficient choice for supporting fitness goals or muscle recovery.
View goal →
flagEnergy
Impact
Moderate effect
Magnesium is crucial for energy production, but the low absorption of magnesium oxide means it is not an effective way to significantly boost energy levels or combat fatigue.
View goal →
flagSleep Support
Impact
Moderate effect
While magnesium can aid relaxation, the poor absorption of magnesium oxide means it's less effective for promoting systemic relaxation and sleep compared to forms like glycinate.
View goal →
flagStress Relief
Impact
Moderate effect
Magnesium oxide's low absorption makes it less effective for supporting the nervous system and providing stress relief compared to better-absorbed magnesium forms.
View goal →
scienceIngredients
IngredientAmount per serving
Magnesium
350 mg
grain_off Gluten Free person Adults 18–50
flagReport overview
Magnesium 60
This magnesium oxide product is a high-dose, extremely affordable option, but its very low systemic bioavailability limits its effectiveness for general magnesium supplementation, making it more suitable for digestive support.
scienceView ingredientinventory_2View products
inventory_2Alternative products
82 Value

Magnesium Citrate Pure Powder

Best Naturals
4.4
★★★★★
(126 ratings)
Higher analysis score (82 vs 50) and a lower price per serving (0.04 vs 0.07) for excellent value.
Other sellers (0)
80 Value

Magnesium Chelate Complex 100 mg

Source Naturals
4.8
★★★★★
(7684 ratings)
Higher analysis score (80 vs 50) and a lower price per serving (0.05 vs 0.07) for excellent value.
Other sellers (1)
75 Value

Magnesium Complex 500 mg

Nature's Way
4.8
★★★★★
(7940 ratings)
Higher analysis score (75 vs 50) and a lower price per serving (0.13 vs 0.07) for excellent value.
Other sellers (3)
98 Performance

Buffered Magnesium Bisglycinate Powder

Kirkman
4.8
★★★★★
(166 ratings)
Higher analysis score (98 vs 50) indicating superior quality or bioavailability.
Other sellers (0)
93 Performance

Magnesium (Glycinate)

Pure Encapsulations
4.5
★★★★★
(420 ratings)
Higher analysis score (93 vs 50) indicating superior quality or bioavailability.
Other sellers (1)
90 Performance

Chelated Magnesium 133 mg

Swanson
4.8
★★★★★
(10236 ratings)
Higher analysis score (90 vs 50) indicating superior quality or bioavailability.
Other sellers (0)
45 Budget

Magnesium Oxide Pure Powder

NOW
4.5
★★★★★
(1184 ratings)
Lower price per serving (0.02 vs 0.07) with a good analysis score (45).
Other sellers (4)
65 Budget

Magnesium 250 mg

21st Century
4.7
★★★★★
(70201 ratings)
Lower price per serving (0.04 vs 0.07) with a good analysis score (65).
Other sellers (0)
58 Budget

Magnesium 200 mg

Swanson Premium Brand
4.7
★★★★★
(1124 ratings)
Lower price per serving (0.04 vs 0.07) with a good analysis score (58).
Other sellers (0)
82 Value

Magnesium Citrate Pure Powder

Best Naturals
4.4
★★★★★
(126 ratings)
Higher analysis score (82 vs 50) and a lower price per serving (0.04 vs 0.07) for excellent value.
Other sellers (0)
80 Value

Magnesium Chelate Complex 100 mg

Source Naturals
4.8
★★★★★
(7684 ratings)
Higher analysis score (80 vs 50) and a lower price per serving (0.05 vs 0.07) for excellent value.
Other sellers (1)
75 Value

Magnesium Complex 500 mg

Nature's Way
4.8
★★★★★
(7940 ratings)
Higher analysis score (75 vs 50) and a lower price per serving (0.13 vs 0.07) for excellent value.
Other sellers (3)
98 Performance

Buffered Magnesium Bisglycinate Powder

Kirkman
4.8
★★★★★
(166 ratings)
Higher analysis score (98 vs 50) indicating superior quality or bioavailability.
Other sellers (0)
93 Performance

Magnesium (Glycinate)

Pure Encapsulations
4.5
★★★★★
(420 ratings)
Higher analysis score (93 vs 50) indicating superior quality or bioavailability.
Other sellers (1)
90 Performance

Chelated Magnesium 133 mg

Swanson
4.8
★★★★★
(10236 ratings)
Higher analysis score (90 vs 50) indicating superior quality or bioavailability.
Other sellers (0)
flagReport alternatives

SuppHelper

Compare supplements smarter. Science-backed, user-rated, updated daily.

Explore

  • Compare Supplements
  • Health Goals
  • Stacks

Legal

  • Privacy Policy
  • Terms of Use
  • Medical Disclaimer

Stay in the Loop

© 2025 SuppHelper. All rights reserved.