Nature's Bounty Magnesium Softgels, 400 mg - 75 ct | CVS Review

Nature's Bounty High Potency Magnesium provides 100% of the daily recommended value for this important mineral in just one softgel. The page describes magnesium as essential for supporting bone health, and says it plays an important role in maintaining bone mineralization. It also states that magnesium is a component in over 200 enzymes in the body and is involved in muscle contractions, nerve impulses, energy metabolism and protein formation. The listing shows 75 count, 0.1 lbs, Item # 175248, and notes that the item is part of CVS's Test to be Trusted Program, with program details linked on the CVS site. Listed product claims are that it helps maintain healthy bones, supports muscle health, is involved in protein formation, and offers one rapid release liquid softgel per day. The page carries the standard notice that the statements have not been evaluated by the Food and Drug Administration and that the product is not intended to diagnose, treat, cure or prevent any disease. The page shows the item as out of stock, with no price, ingredients list, or written customer reviews displayed in the scraped text. The product is sold under the Nature's Bounty brand, and the page links to related ingredients and reviews pages for the same product.

Product Focus: Occasional Heartburn: Fast ReliefAlso covers:Digestion
Tier ⓘ
Tier 4 · Rank 5
Tier 4 · Emerging. A promising mechanism or animal data, with thin human evidence so far. Rank 5 within Tier 4 for Occasional Heartburn: Fast Relief; 14 of 28 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
54 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
77% of 9,619
Biohacker Mentions
8 of 10
Cost per month
$4

Study, Trial or Testing Result Summary

Members Only32 human studies · 26 improved
32 human studies26 improved5 no effect358,372 people studied

No study given here tested magnesium oxide on its own, or in a softgel, for heartburn. The research is on antacid mixtures that contain magnesium alongside other ingredients. In pregnant women, a review of nine small trials found treatments that included a magnesium and aluminium antacid with simethicone gave complete heartburn relief more often than placebo, though the evidence was limited [1]. A two week magnesium and aluminium gel improved heartburn frequency in 88% of pregnant women, about the same as an alginate product [2]. For speed, a calcium and magnesium antacid raised stomach pH within about 6 minutes versus about 240 minutes on placebo [3], and a magnesium antacid gel acted within the first 5 minutes [4]. A month of a mixture with simethicone, charcoal and magnesium oxide eased indigestion and burning more than placebo [5]. However, an aluminium and magnesium antacid did not relieve indigestion better than placebo in another trial [6]. This product gives 400 mg of magnesium, above the studied 350 mg and above the daily recommended limit, so members can take less. Animal and cell studies are never counted.

See all 32 studies →Hide the studies

Review Totals and Summary

Members Only9,619 reviews · 77% positive
9,619 reviews · Amazon 8,685 · Walmart 476 · CVS 134 · Naturesbounty 37 · Nature's Bounty 37 · Mariano's 30 · Fry's Food 30 · Marianos 30
77% positive13% neutral10% negative

Nature's Bounty Magnesium Softgels, 400 mg, has garnered approximately 9552 ratings across various stores, with a strong majority of 73% giving it 4 or 5 stars. Overall, customers generally find this magnesium supplement effective and a good value, though some common points of feedback emerge regarding its size and occasional quality concerns. **What it did for buyers** Many users report positive effects from taking these softgels. They are frequently praised for aiding in "muscle relaxation and mild constipation," and for helping to alleviate muscle cramping. Customers have noted feeling "more energetic and less achy," with some describing the product as "effective at stopping or lessening muscle cramps." One store summary also highlighted that it gives users "the boost they need." **Complaints** While many are satisfied, some customers did not experience significant benefits, with one reviewer stating, "haven't noticed a significant difference in my energy or sleep." A notable concern revolves around product quality and packaging. There have been reports of softgels arriving in poor condition, with descriptions like "looked like they either melted or were just crushed." In rare instances, a softgel might burst, leading to "oil. It will go rancid," which is a quality control issue. **Taste, Smell, Pill Size, and Form** This product comes in rapid-release softgel form, which many users prefer for better absorption compared to standard tablets or pills. Most find the softgels "so easy to swallow," and generally report "no stomach upset or bad aftertaste." However, a consistent theme is the size of the softgels; they are often described as "pretty large soft gels" or "larger than other brands," with one reviewer noting they are "about an inch long." While many still find them easy to swallow, this size can be a drawback for some. This summary focuses exclusively on the softgel form, excluding feedback on other product forms like gummies or capsules. **Value for Money** For many, the Nature's Bounty Magnesium Softgels offer good value. Some customers feel they are "worth the little extra money" due to their effectiveness and superior absorption. Reviewers frequently call it a "great value for the money" and an "effective product." While one reviewer considered it an "okay supplement for the price," another cautioned against wasting money due to quality issues. **Who it seems to suit and who it did not** The softgels appear to be well-suited for individuals seeking relief from muscle cramps, muscle relaxation, or mild constipation. Older adults, in particular, have found them beneficial. Those looking for an energy boost or better absorption than traditional pills also seem to benefit. However, the large size of the softgels might pose a challenge for "people with swallowing problems." It may also not be the ideal choice for those who have not seen significant changes in energy or sleep with other magnesium brands.

Biohacker Summary

Members Only8 of 10 recommend it
8 of 10 biohackers on our panel recommend it

Most of the panel recommends or uses magnesium, and sleep is the most common reason, with others citing blood pressure, stress, muscle recovery, bone health and brain function. Preferred forms are glycinate and threonate, and several take about 400 mg of threonate before bed, while others suggest 300 mg of glycinate or taking it 90 minutes to 2 hours before sleep. Some pair it with electrolyte drinks that contain sodium and potassium, and one suggests it alongside zinc. One panelist warns that labels can make the dose look larger than it is, since the listed compound weight may be far more than the actual magnesium, and says the evidence that it improves sleep is not yet consistent. Two others stayed neutral and mainly reviewed the evidence.

See all 10 biohackers →Hide the biohackers
  • Dr. Rhonda Patrick · Magnesium · recommends
    • 8 Nov 2026 · recommends · Instagram ↗
      Explains that magnesium helps the body activate and metabolize vitamin D, and that magnesium intake has been associated with lower odds of vitamin D deficiency and insufficiency.
    • 6 Nov 2026 · neutral · Instagram ↗
      Mentions that getting too little magnesium may play a role in declining testosterone levels.
    • 3 Nov 2026 · recommends · X ↗
      Recommends getting enough magnesium, around 300–400 mg daily from diet and supplements, as it is an essential cofactor for vitamin D metabolism. Magnesium glycinate is a good form.
    • 1 Nov 2026 · neutral · YouTube ↗
      Mentions magnesium as one of the micronutrients found in multivitamins that people often don't get enough of from their diets.
    • 31 Oct 2026 · neutral · YouTube ↗
      Explains that magnesium helps control blood pressure by boosting the production of substances that relax blood vessels and improve cardiovascular health, citing a meta-analysis that found magnesium supplementation at an average dose of 368 mg per day notably lowers both systolic and diastolic blood pressure.
    • 29 Oct 2026 · neutral · Facebook ↗
      Magnesium supplementation has lowered blood pressure in randomized controlled trials. An analysis of 34 trials involving over 2,000 participants found modest reductions in both systolic and diastolic pressure, with a median dose of 368 mg/day.
    • 16 Oct 2026 · warns · Facebook ↗
      Warns that some magnesium supplements make the dose look much larger than it really is and that labels can fool people.
    • 29 Sep 2026 · recommends · YouTube ↗
      Mentions magnesium as an important nutrient component for testosterone.
    • 28 Sep 2026 · warns · YouTube ↗
      Warns that some supplement companies mislead consumers by listing the total compound weight of magnesium citrate as the elemental magnesium dose, when the actual elemental magnesium content is much lower, potentially around 44-66 milligrams.
    • 2 Sep 2026 · neutral · Facebook ↗
      States there is not yet strong, consistent evidence that magnesium supplementation reliably improves sleep, noting that while some meta-analyses suggest it can improve sleep quality scores, sleep efficiency, and sleep duration, individual studies are inconsistent and several have found no meaningful effect.
  • Dr. Eric Berg · Magnesium · recommends
    • 7 Nov 2026 · recommends · Facebook ↗
      Recommends Magnesium glycinate, noting its high absorption rate compared to magnesium oxide, and its support for energy, sleep, muscle relaxation, and vitamin D function.
    • 7 Nov 2026 · neutral · Instagram ↗
      Dr. Berg states that when nutrients like magnesium are too low, fatigue and weakness can follow.
    • 6 Nov 2026 · recommends · Podcast ↗
      Recommends focusing on magnesium to support stronger bones if a neck hump is associated with osteoporosis.
    • 6 Nov 2026 · neutral · Instagram ↗
      Explains that leg and calf cramps are most often caused by low magnesium, with leafy greens being a top source.
    • 6 Nov 2026 · recommends · YouTube ↗
      States that magnesium is a cofactor that allows B1 to work more efficiently.
    • 4 Nov 2026 · recommends · YouTube ↗
      States that magnesium is the most important mineral for energy production, as one cannot make energy without it.
    • 1 Nov 2026 · neutral · YouTube ↗
      Magnesium is involved in 300 to 600 enzyme reactions, acts as a biological brake pedal, is the master controller over calcium, and is involved in making ATP, the energy currency of the body. It takes energy to go to sleep, and magnesium is required for relaxation and good sleep. Magnesium also helps balance cortisol levels and calm you.
    • 30 Oct 2026 · neutral · Instagram ↗
      Dr. Eric Berg states that magnesium supports energy, muscle function, and sleep, and that most of it is stored inside cells, making deficiencies harder to detect with a standard blood test.
    • 28 Oct 2026 · neutral · YouTube ↗
      Notes that magnesium could also be a factor in preventing muscle cramps.
    • 25 Oct 2026 · recommends · YouTube ↗
      Recommends magnesium, specifically magnesium glycinate, stating it is key for D3 and K2 to work and is probably more important than calcium for building bone.
  • Thomas DeLauer · Magnesium · recommends
    • 5 Nov 2026 · recommends · YouTube ↗
      Recommends taking magnesium glycinate and threonate at night to act as a brake on the nervous system, block excitatory signaling, help wind down, and support serotonin and melatonin production for better sleep.
    • 4 Nov 2026 · neutral · YouTube ↗
      Mentions that magnesium glycinate also helps a lot with sleep.
    • 2 Nov 2026 · neutral · YouTube ↗
      Mentions that restless leg syndrome is often treated with magnesium, but states that the sensation is actually coming from three other issues.
    • 28 Oct 2026 · uses · YouTube ↗
      Uses Element's cans which contain 30 milligram magnesium, finding that electrolytes help his workout performance.
    • 24 Oct 2026 · uses · YouTube ↗
      Uses Element's 30 mg magnesium cans first thing in the morning to prime his day and help with workout performance.
    • 23 Oct 2026 · recommends · YouTube ↗
      Recommends magnesium around the time one would normally break a fast to calm the brain and dull feelings of conditioned hunger.
    • 8 Oct 2026 · recommends · Facebook ↗
      Recommends magnesium, noting it is a cofactor for enzymes that build neurotransmitters, and deficiency can affect mood, happiness, and motivation.
    • 6 Oct 2026 · neutral · YouTube ↗
      Notes that modern agricultural practices have led to soils depleted of trace minerals like magnesium, resulting in widespread magnesium deficiency.
    • 1 Oct 2026 · recommends · YouTube ↗
      Recommends taking some magnesium glycinate tonight to help calm down and sleep.
    • 25 Sep 2026 · neutral · Facebook ↗
      Mentions that magnesium in pumpkin seeds relaxes bronchial smooth muscle.
  • Andrew Huberman · Magnesium · recommends
    • 4 Nov 2026 · recommends · Instagram ↗
      Notes that Les Spellman's team includes 'Magnesium timed right' as part of their game plan to optimize recovery in unfavorable conditions.
    • 22 Oct 2026 · neutral · Podcast ↗
      Discusses Magnesium Threonate as a tool for falling asleep.
    • 7 Aug 2026 · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 27 Jul 2026 · uses · YouTube ↗
      Uses Element, an electrolyte drink with sodium, magnesium, and potassium in correct ratios and no sugar, to ensure adequate hydration and electrolytes, especially when starting days fast or during physical exercise.
    • 20 Jul 2026 · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 20 Jul 2026 · recommends · YouTube ↗
      Confirms that magnesium is absolutely important for cognitive function, noting studies show those with lower magnesium intakes tend to perform less well on cognitive function tests, and it's related to brain changes over time and dementia risk.
    • 13 Jul 2026 · uses · X ↗
      Takes 400 mg of Double Wood Magnesium L-Threonate before bed for sleep.
    • 12 Jul 2026 · uses · X ↗
      He takes 400 mg of Magnesium L-Threonate from Double Wood before bed for sleep.
    • 6 Jul 2026 · uses · X ↗
      Takes 400 mg of Double Wood Magnesium L-Threonate before bed for sleep.
    • 22 Jun 2026 · uses · X ↗
      Takes 400 mg of magnesium L-threonate before bed for sleep.
  • Dr. Mark Hyman · Magnesium · recommends
    • 4 Nov 2026 · recommends · YouTube ↗
      Recommends magnesium breakthrough advanced ten from Biooptimizers, which is their most complete magnesium formula with 10 bioavailable forms and 550 milligrams of elemental magnesium, designed to support restful restorative sleep, muscle recovery, stress resilience, and metabolic health.
    • 1 Nov 2026 · uses · Facebook ↗
      Recommends considering magnesium glycinate before bed for nervous system support, deeper sleep quality, and to help the body transition into rest, and states that they take it every night.
    • 29 Oct 2026 · neutral · YouTube ↗
      Explains that a lack of magnesium can cause muscles and nerves to malfunction, resulting in muscle weakness, twitching, and cramps.
    • 21 Oct 2026 · recommends · YouTube ↗
      Recommends Magnesium Breakthrough Advanced 10 from Bioptimizers for restful sleep, muscle recovery, stress resilience, and metabolic health, especially during stressful times of the year.
    • 14 Oct 2026 · recommends · TikTok ↗
      Recommends magnesium because it is involved in over 600 reactions in the body and up to 80% of people may have low levels that never get flagged on a standard blood test.
    • 12 Oct 2026 · recommends · YouTube ↗
      Recommends magnesium as a basic supplement during detoxification to support pathways, help with constipation, and provide electrolytes.
    • 7 Oct 2026 · recommends · YouTube ↗
      Recommends Magnesium Breakthrough Advanced 10 from Biooptimizers, which contains 10 bioavailable forms and 550 mg of elemental magnesium, to support restful sleep, restorative sleep, muscle recovery, stress resilience, and metabolic health.
    • 30 Sep 2026 · uses · YouTube ↗
      Has recommended magnesium breakthrough from bioptimizers for years and now uses Magnesium Breakthrough Advanced 10 as part of his evening routine, especially during periods of travel, training, and higher stress, to support sleep, muscle recovery, and metabolic health.
    • 22 Sep 2026 · recommends · Instagram ↗
      Recommends correcting nutrient deficiencies with magnesium.
    • 16 Sep 2026 · recommends · YouTube ↗
      Recommends Magnesium Breakthrough Advance 10 from BiOptimizers, which has 10 bioavailable forms of magnesium and more elemental magnesium, as part of his evening routine for sleep, muscle recovery, and metabolic health.
  • Dave Asprey · Magnesium · uses
    • 3 Nov 2026 · uses · Instagram ↗
      Looks at magnesium alongside protein to keep muscle for the long run.
    • 3 Nov 2026 · recommends · YouTube ↗
      Suggests adding magnesium to help keep potassium in the system longer, as they work hand in hand.
    • 31 Oct 2026 · neutral · YouTube ↗
      Mentions magnesium in the context of sleep but states that it doesn't address the core issue of waking up during the night.
    • 25 Oct 2026 · recommends · Podcast ↗
      Suggests that magnesium may help slow aging, support cellular repair, and improve sleep.
    • 17 Oct 2026 · neutral · Facebook ↗
      States that magnesium can affect how the body responds to a supplement.
    • 27 Sep 2026 · recommends · Podcast ↗
      Recommends fixing sleep with 300mg of Magnesium 101 before bed if diet and exercise aren't melting stubborn belly fat.
    • 7 Sep 2026 · uses · Instagram ↗
      Dave Asprey says his daily routine includes magnesium as part of a carefully developed combination for longevity.
    • 5 Sep 2026 · recommends · YouTube ↗
      Recommends magnesium glycinate for sleep, stating that trials show it helps people fall asleep about 17 minutes faster and that he finds it incredibly effective.
    • 3 Sep 2026 · recommends · YouTube ↗
      Mentions magnesium glycinate as one of the five gut-friendly, extensively researched ingredients in Kill Switch that helps with natural sleep.
    • 29 Aug 2026 · recommends · YouTube ↗
      Dave Asprey recommends Magnesium Glycinate for sleep, noting human studies show it helps people fall asleep faster, is safe, and works on a fundamental aspect of health, unlike magnesium oxide which acts as a laxative.
  • Ben Greenfield · Magnesium · uses
    • 29 Oct 2026 · uses · YouTube ↗
      Uses magnesium during surgery because it is neuroprotective.
    • 22 Oct 2026 · uses · YouTube ↗
      Says he is drinking LMNT, which contains sodium, potassium, and magnesium, and states that he actually drinks this stuff.
    • 15 Oct 2026 · recommends · Podcast ↗
      Mentions magnesium as part of a bare-minimum protocol.
    • 15 Oct 2026 · recommends · YouTube ↗
      Advises getting red blood cell magnesium levels to the high end of the range as a minimum step for overall health and to slow down heart disease.
    • 3 Sep 2026 · recommends · YouTube ↗
      Recommends supplementing with magnesium threonate if one is low in magnesium, as it crosses the blood-brain barrier and is demonstrated to increase hippocampus plasticity, theoretically making one smarter and improving memories.
    • 25 Aug 2026 · uses · Facebook ↗
      Uses Magnesium Breakthrough from BIOptimizers as part of their daily stack, taking four capsules in the evening to support relaxation, recovery, and a good night of sleep.
    • 17 Aug 2026 · recommends · Facebook ↗
      Recommends Celtic Sea Salt's new electrolyte drink "Hydrate" for replacing electrolytes and trace minerals lost through sweat, noting it contains 70 naturally occurring trace minerals, plus magnesium, taurine, and potassium.
    • 15 Aug 2026 · warns · YouTube ↗
      Had heart palpitations when he was really overdoing magnesium, not knowing what he was taking.
    • 8 Aug 2026 · recommends · YouTube ↗
      Recommends taking magnesium as a co-factor to increase vitamin D absorption.
    • 13 Jun 2026 · neutral · X ↗
      Notes a new study indicating that magnesium is a core dietary antioxidant closely associated with a reduced risk of accelerated biological aging.
  • Siim Land · Magnesium · recommends
    • 25 Oct 2026 · recommends · Instagram ↗
      States that Magnesium can be a useful addition for some people for sleep.
    • 12 Oct 2026 · recommends · YouTube ↗
      Recommends magnesium for sleep, especially deep sleep, and suggests trying better types like Threonate, Biscinate, or Torate, referencing a study where magnesium supplementation improved deep sleep.
    • 7 Oct 2026 · recommends · Instagram ↗
      Recommends Magnesium for blood pressure, migraines and deficiency, based primarily on human research, especially randomized controlled trials showing measurable benefits.
    • 6 Oct 2026 · neutral · X ↗
      Lists Magnesium as one of 15 supplements backed by human studies.
    • 30 Sep 2026 · recommends · Instagram ↗
      States that magnesium is a fundamental mineral governing over 600 enzymes and metabolic reactions, and recommends that most people need at least 400-500 mg/d for health, with some needing up to 600 mg/d.
    • 30 Sep 2026 · neutral · X ↗
      Lists seafood and pumpkin seeds as sources of Magnesium.
    • 6 Sep 2026 · recommends · Instagram ↗
      Thinks magnesium has some of the strongest evidence and is worth considering.
    • 17 Aug 2026 · recommends · YouTube ↗
      Recommends taking magnesium, specifically glycinate and threonate forms, 1 to 2 hours before bed for sleep benefits, noting that glycinate promotes relaxation and threonate crosses the blood-brain barrier for sleep quality and cognitive function.
    • 14 Aug 2026 · neutral · X ↗
      Notes that Boron reduces calcium/magnesium loss.
    • 10 Aug 2026 · recommends · YouTube ↗
      Notes that magnesium is important for activating thiamine into its more biologically active form, and a magnesium deficiency can impair blood sugar regulation even with adequate thiamine intake.
  • Bryan Johnson · Magnesium · uses
    • 22 Oct 2026 · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 15 Aug 2026 · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 4 May 2026 · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 2 May 2026 · uses · X ↗
      He takes 400 mg of Double Wood Magnesium L-Threonate before bed for sleep.
    • 21 Apr 2026 · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 15 Apr 2026 · uses · X ↗
      Takes 400 mg of Magnesium Threonate before bed for sleep.
    • 14 Apr 2026 · uses · X ↗
      Takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 8 Apr 2026 · uses · X ↗
      Takes 400 mg of magnesium L-threonate before bed for sleep.
    • 7 Apr 2026 · uses · X ↗
      He takes 400 mg of Magnesium L-Threonate before bed for sleep.
    • 5 Apr 2026 · uses · X ↗
      Takes 400 mg of magnesium threonate before bed for sleep.
  • Peter Attia · Magnesium · neutral
    • 1 Jun 2026 · neutral · Podcast ↗
      Peter reviews the evidence for select off-label medications and supplements commonly used for sleep, including glycine, magnesium, ashwagandha, and phosphatidylserine.
    • 4 Jan 2026 · recommends · YouTube ↗
      Suggests that zinc and magnesium could potentially help with vasodilation and sleep, particularly for women experiencing severe symptoms in the luteal phase.
    • 15 Sep 2025 · recommends · Podcast ↗
      Peter discusses electrolytes and fiber and the ketogenic diet, specifically preventing magnesium loss.
    • 9 Jul 2025 · recommends · YouTube ↗
      Recommends magnesium as one of the 'big three' micronutrients for bone health, suggesting a daily intake of 300 to 500 milligrams as a minimum, and personally aims for about a gram of supplemental magnesium.
    • 6 Jul 2025 · recommends · YouTube ↗
      Recommends magnesium for optimizing bone mineral density, suggesting a daily intake of 300 to 500 milligrams as a minimum, but personally aims for about a gram.
    • 7 Jul 2024 · recommends · YouTube ↗
      Takes a hardline view that most people do not have adequate or optimal levels of magnesium, and suboptimal levels will impede the metabolism of vitamin D because magnesium is a cofactor in its enzymatic conversion.
    • 1 Jul 2024 · uses · YouTube ↗
      Takes a hardline view that most people do not have adequate or optimal levels of magnesium, and suboptimal levels will impede vitamin D metabolism because magnesium is a co-factor in the enzymatic conversion of vitamin D.
    • 20 May 2024 · uses · YouTube ↗
      Takes magnesium as a straightforward supplement.
    • 28 Feb 2024 · neutral · YouTube ↗
      Mentions that magnesium intake is often super low and impactful on testosterone levels.
    • 11 Dec 2023 · uses · Facebook ↗
      Discusses the important roles of magnesium in the body, how to determine if one might be deficient, the prevalence of magnesium deficiency, and its potential cognitive benefits.

RAL Summary

Members OnlyTier 4 for Occasional Heartburn: Fast Relief

The tier 2 grade rests on studies of antacid mixtures, mostly magnesium with aluminium, calcium, simethicone or charcoal, none of which tested magnesium oxide alone in a swallowed softgel for fast heartburn relief. So it is graded Tier 4, lower than the rules alone gave.

  • Emerging: not enough evidence to rank higher yet.

Where the evidence disagrees: 5 of the 32 human studies found no effect.

More Details

Members OnlyBody systems · Combine with · Possible side effects

Body systems: Digestive system

Combine with: Magnesium works synergistically with several other nutrients. Vitamin D3 is crucial as magnesium is required for its activation and utilization, supporting bone health and immune function. Vitamin B6 can enhance magnesium absorption and cellular uptake, further aiding nerve function and energy metabolism. Zinc is another beneficial addition, as it participates in numerous enzymatic reactions alongside magnesium, supporting immune health and overall cellular processes.

Possible side effects: Reviewers mostly report no stomach upset or aftertaste, though some note it eases mild constipation and some received melted, crushed or burst softgels. The softgels are large, which may be hard for people with swallowing problems.

Supplement Facts

Magnesium 400 mg
Supplement Facts
Serving Size 1 Softgel
Servings Per Container 75
Amount Per Serving% Daily Value
Calories10
Calories from Fat5
Total Fat0.5 g1%
Saturated Fat0.5 g3%
Magnesium (as Magnesium Oxide)400 mg100%
* Percent Daily Values are based on a 2,000 calorie diet.

Other ingredients: Medium Chain Triglycerides, Gelatin, Vegetable Glycerin. Contains <2% of: Natural Caramel Color, Soy Lecithin, Yellow Beeswax.

Directions: For adults, take one (1) softgel daily, preferably with a meal.

Label source: Naturesbounty · Report a label change

Sizes and barcodes: Magnesium Softgels, 400 mg - 75 ct | CVS, UPC 0 74312 59408 3 (on market)

Show entire label
The Nature's Bounty Magnesium Softgels, 400 mg - 75 ct | CVS label
Magnesium Softgels, 400 mg - 75 ct | CVS

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Our articles on this subject

Graded October 28, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.