Magnesium Citrate 200 mg

NOW

4.8

★ ★ ★ ★ ★

(42498 ratings)

Magnesium 400 mg

Score

Citrate has moderate absorption and is a sensible general-purpose choice, though it can loosen stools at this amount. The formula offers no uptake cofactor or special processing feature.

How scoring works

Tablet

Quantity:100 Tablet(s) • (50 servings)

Goals:

General Health

Heart Health

Energy

Cardiovascular Support

Stress Relief

Digestive Health

Fitness

Testosterone Support

Bone Health

Score 80

Citrate has moderate absorption and is a sensible general-purpose choice, though it can loosen stools at this amount. The formula offers no uptake cofactor or special processing feature.

How scoring works

Also available as

1 option

250 servings Magnesium 400 mg • 250 Tablet(s) • 125 servings $23.10 ($0.18 per serving)

$11.60($0.23 per serving)

Vitacost	$ 13.37
iHerb	$ 12.24
Daily Vita	$ 11.60
Walmart	$ 13.59
iHerb	$ 12.24

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Analysis

The named citrate formula provides 400 mg of elemental magnesium in a two-tablet serving. Citrate has moderate absorption and is a sensible general-purpose choice, though it can loosen stools at this amount.

The dose is well aligned with broad muscle, stress, bone, and cardiovascular support when tolerated. Two tablets allow the serving to be divided, and the cost remains reasonable.

The formula offers no uptake cofactor or special processing feature. Choosing a dose that matches personal intake and tolerance is more useful than relying on the headline amount alone.

Who is it for

Adults seeking a standard citrate supplement
People who want a divisible serving
Users focused on broad daily magnesium intake

Best for

General magnesium replenishment
Divided morning and evening use
Muscle and stress-support routines

Pros

Uses the named magnesium citrate form
Provides a clear 400 mg elemental amount
Two-tablet serving can be split
Reasonable cost for a citrate product

Cons

The full amount may loosen stools
No uptake cofactor is included
The supplied ingredient data does not repeat the citrate form beside the mineral entry

Warnings

The large supplemental magnesium amount may cause loose stools, nausea, or abdominal cramping, especially when taken all at once.
Supplemental magnesium can accumulate with significant kidney impairment; use only with medical guidance in that situation.
Magnesium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics, so separate the doses as directed by a pharmacist.

Nutrient quality

Highest impact

Magnesium citrate is a reasonably well-absorbed form that may also loosen stools. The 400 mg amount may loosen stools in sensitive users.

Ingredient transparency

High impact

The elemental amount is clearly stated and no proprietary blend hides the dose. Missing other ingredients and complete intake directions leave important label details unresolved.

Customer satisfaction

High impact

The supplied average rating is strong and the rating volume provides an aggregate signal. No comment-level evidence is provided to assess recurring complaints or confirm how experience matches the intended purpose.

Value for money

Highest impact

The formula offers reasonable utility, though category value is not especially strong. The supplied active formula is not inflated by obvious low-value extras.

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Goals

Selected only

General Health

Impact

Highest effect

A+

Goal Fit

A-

Strength of Support

B-

Coverage

Formula Quality

Magnesium · 400 mg

Magnesium is a foundational mineral involved in energy production, muscle function, and nervous-system regulation. The citrate form offers moderate absorption and a clearly stated amount that fits meaningful daily supplementation.

The single-ingredient design is easy to understand and avoids an underdosed multi-nutrient blend. Breadth is naturally limited, but the formula provides strong depth for people seeking magnesium support.

Study evidence

Magnesium Supportive 114 studies

Heart Health

Impact

Highest effect

A-

Goal Fit

Strength of Support

C+

Coverage

A+

Formula Quality

Magnesium · 400 mg

MK-7 vitamin K supports calcium placement and offers a clear arterial-health mechanism. The identified long-acting form is well aligned with cardiovascular use.

The single-active formula is narrow but supplies a meaningful, transparent amount. People using warfarin or another vitamin K antagonist need consistent vitamin K intake because abrupt changes can alter anticoagulant control.

Energy

Impact

Highest effect

B+

Goal Fit

A-

Strength of Support

D+

Coverage

Formula Quality

Magnesium · 400 mg

Magnesium supports ATP production, muscle function, and nerve signaling, giving it a direct metabolic role. The elemental amount is substantial and citrate offers practical moderate absorption.

The focused formula provides strong depth for magnesium-dependent energy pathways. It does not address alertness, mitochondrial cofactors beyond magnesium, or stress resilience.

Study evidence

Magnesium Supportive 4 studies

Cardiovascular Support

Impact

High effect

Goal Fit

B+

Strength of Support

C-

Coverage

A+

Formula Quality

Magnesium · 400 mg

Magnesium citrate supplies a clearly stated amount that supports vascular tone and normal cardiac electrical activity. Citrate is more useful for systemic delivery than basic oxide or carbonate forms.

The formula provides focused mineral support rather than broad cardiovascular coverage. Its substantial amount can loosen stools in sensitive users, especially when taken at once.

Study evidence

Magnesium Supportive 123 studies

Stress Relief

Impact

High effect

Goal Fit

A-

Strength of Support

C-

Coverage

Formula Quality

Magnesium · 400 mg

Magnesium citrate provides foundational nervous-system support and may help relaxation when magnesium status is low. The clearly stated 400 mg serving is substantial and uses a moderately absorbed form.

The focused formula does not address adaptogenic or neurotransmitter pathways beyond magnesium. A 400 mg supplemental serving may cause loose stools or stomach cramping, especially in sensitive users.

Study evidence

Magnesium Supportive 13 studies

Digestive Health

Impact

High effect

Goal Fit

Strength of Support

D+

Coverage

A+

Formula Quality

Magnesium · 400 mg

A substantial magnesium amount is well aligned with bowel motility and stool softening. The single-mineral formula does not address the gut barrier, microbiome, enzyme activity, or mucosal comfort.

The product name identifies citrate, but the supplied ingredient line does not explicitly confirm the chemical form. A 400 mg supplemental amount can cause diarrhea, and people with impaired kidney function need medical guidance because magnesium can accumulate.

Study evidence

Magnesium Supportive 50 studies

Ingredients

Display goals

Ingredient	Amount per serving
Magnesium	400 mg

Report overview

Magnesium · 400 mg OverallScore

Active Ingredient Quality & Bioavailability

Dose, Safety & Label Transparency

B+

Value

The product name identifies magnesium citrate, a moderately absorbable form, and the elemental amount is clearly stated. The dose fits the preferred range, while the simple formula offers no uptake cofactor. A below-median serving cost supports good value.

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Alternative products

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Performance

Krebs Magnesium Potassium Complex

Nature's Way

Magnesium lysinate and malate provide favorable forms at a useful amount, with a modest potassium contribution. The more moderate amount may be easier to tolerate than the original’s high supplemental dose. The formula remains focused rather than comprehensive.

Performance

Magnesium Bisglycinate Powder

NOW

Magnesium bisglycinate supplies a well-absorbed form at a practical amount in an adjustable powder. The more moderate amount may be easier to tolerate than the original’s high supplemental dose. The single-mineral design does not address needs beyond magnesium.

Performance

Magnesium Bisglycinate 200 mg

Natural Factors

Magnesium bisglycinate provides a highly absorbable form at a moderate amount suited to routine use. The more moderate amount may be easier to tolerate than the original’s high supplemental dose. The focused formula offers no additional electrolyte or relaxation ingredients.

Budget

Magnesium Citrate Pure Powder

Best Naturals

Magnesium citrate in an adjustable powder provides useful absorption with a clearly stated amount. Its lower serving cost improves affordability, while citrate may loosen stools in sensitive users.

Budget

Magnesium Caps 500 mg

Life Extension

Citrate, succinate, and named glycinate broaden the magnesium forms in a very economical capsule. Its lower serving cost improves affordability, while the oxide portion lowers average absorption, and the large amount may cause diarrhea or cramping.

Budget

Potassium + Magnesium

Nutricost

Magnesium citrate with a modest potassium addition creates a simple two-mineral electrolyte formula. Its lower serving cost improves affordability, while potassium is only a supporting amount, and citrate may loosen stools in sensitive users.

Value

Magnesium Bisglycinate Chelate

Healthy Origins

TRAACS magnesium bisglycinate combines premium form quality, a useful elemental amount, and a clean powder format. The lower serving cost strengthens quality-adjusted value. The formula is narrow, and supplied customer satisfaction is less convincing than its ingredient quality.

Value

Magnesium Citrate 420 mg

Nutricost

A substantial magnesium citrate amount offers useful absorption in a focused, economical formula. The lower serving cost strengthens quality-adjusted value. The higher amount may loosen stools or cause abdominal discomfort in sensitive users.

Value