You’ve probably heard that magnesium glycinate is the gold standard for relaxation and sleep support, but with so many brands on the shelf, picking the right one can feel overwhelming. If you’re torn between NOW Magnesium Glycinate and Nutricost Magnesium Glycinate, you’re not alone. Both are reputable, but they differ in dosage, form, and serving size. In this guide, we break down the key differences so you can choose the supplement that aligns with your wellness goals in 2026. For a broader look at how these two stack up against other options, check out our thorne magnesium bisglycinate vs NOW magnesium glycinate.
Pros
- Gentle on digestion, reducing common side effects like laxative effect.
- High bioavailability means your body absorbs more magnesium.
- Trusted quality assurance with third-party testing and GMP compliance.
- Flexible size options let you choose the right supply for your lifestyle.
- Convenient capsule form fits easily into any daily routine.
Cons
- Requires three capsules per serving, which may be less convenient than a single capsule.
- Only available in capsule form, not suitable for those preferring powders or liquids.
- May take up more bottle space due to multiple capsules per dose.
Nutricost Magnesium Glycinate Capsules are a high-quality magnesium supplement designed for those who want effective absorption without digestive upset. Each serving of three capsules provides 210mg of magnesium from magnesium bisglycinate, a form known for its gentle action on the stomach. This product is ideal for individuals looking to support sleep, muscle function, or overall wellness with a reliable magnesium source.
The standout feature is the use of magnesium bisglycinate, which is chelated to glycine for enhanced absorption and reduced laxative effects. Nutricost's third-party testing and NSF certified GMP compliant manufacturing ensure each batch meets strict standards. The flexible sizing options (90, 180, or 360 capsules) allow you to stock accordingly, making it a practical choice for long-term use.
The capsules are easy to swallow and come in a simple, no-nonsense bottle design. The label clearly states the serving size and magnesium content per serving. While the three-capsule serving may require a few extra seconds, it also allows for customizable dosing if you need less or more magnesium. The packaging is compact and travel-friendly.
A potential drawback is the need to take three capsules per serving, which could be less convenient for those who prefer a single pill. Additionally, some users might prefer flavored or chewable options, though Nutricost sticks to standard capsules. There are no known major negatives given the product's high rating and quality assurances.
Overall, Nutricost Magnesium Glycinate Capsules offer an excellent balance of quality, absorption, and value. They are a top choice for anyone seeking a gentle yet effective magnesium supplement. With third-party testing and multiple size options, this product earns a strong recommendation for daily wellness routines.
Pros
- Highly absorbable form of magnesium with minimal GI side effects
- Third-party tested for purity and potency
- Large 360-capsule bottle offers exceptional value
- Manufactured in a GMP-certified facility
- Flexible dosing options to fit individual needs
Cons
- Requires taking 3 capsules per serving, which may be inconvenient for some
- Limited flavor or variety (available only in capsule form)
- No added probiotics or complementary nutrients
Nutricost Magnesium Glycinate Capsules offer a practical solution for those seeking to boost their magnesium intake without the digestive issues often associated with other forms. Each serving of three capsules provides 210mg of elemental magnesium from magnesium glycinate, a chelated form known for its excellent absorption and gentle effect on the stomach. This product is ideal for individuals looking to support muscle function, nerve health, and relaxation, especially those who experience digestive discomfort with magnesium oxide or citrate.
One standout feature is the commitment to quality: the capsules are manufactured in an NSF-certified, GMP-compliant facility, and each batch is third-party tested for potency and purity. This gives users confidence that they are getting a consistent, high-quality supplement. The 360-count bottle offers a generous 120-day supply, making it an economical choice for daily use. The capsules themselves are easy to swallow and have no aftertaste, which adds to the user-friendly experience.
In terms of real-world performance, users report noticeable improvements in sleep quality, muscle recovery, and overall calmness. The gentle absorption means fewer laxative effects compared to cheaper magnesium forms, which is a significant advantage for long-term supplementation. The flexible sizing options (90, 180, and 360 capsules) allow customers to choose the quantity that best fits their lifestyle, though the largest size offers the best value per dose.
A potential drawback is the need to take three capsules per serving, which might be a minor inconvenience for those who prefer one-pill solutions. Additionally, the product is unflavored and in standard capsule form, so it lacks any added taste or functional ingredients like probiotics. However, for a straightforward, high-potency magnesium supplement, these are minor trade-offs.
Overall, Nutricost Magnesium Glycinate Capsules deliver on quality, value, and efficacy. With a stellar rating and a price point that undercuts many competitors, this is a top recommendation for anyone needing a reliable magnesium source without stomach upset. Whether you are an athlete, a busy professional, or someone managing stress, this supplement is a smart addition to your daily regimen.
Pros
- Pure magnesium glycinate with no artificial flavors or fillers
- High bioavailability for better absorption and less digestive discomfort
- Large supply of 135 servings per bottle offers excellent value
- Made in a certified facility with strict quality controls
- Easy to mix into water, juice, or smoothies
Cons
- Unflavored powder may have a slightly bitter taste when mixed with water alone
- Requires mixing and is not as convenient as pre measured capsules for on the go use
- Some users may prefer a flavored option for better palatability
The Nutricost Magnesium Glycinate Powder delivers 210mg of elemental magnesium per serving in the well absorbed glycinate form. This unflavored powder is designed for those who want a clean, additive free supplement to support relaxation, muscle recovery, and overall wellness. It is particularly suitable for individuals who have trouble swallowing pills or prefer customizable dosing.
The standout feature is the high quality of magnesium glycinate, which is known for superior bioavailability compared to other forms like oxide. This means your body can more effectively utilize the magnesium for sleep support, stress reduction, and muscle function. The powder mixes easily into water, juice, or smoothies, and the unflavored profile ensures it does not overpower your drink.
Manufactured in an NSF certified, GMP compliant, and FDA registered facility, the supplement meets rigorous quality standards. The bottle includes a scoop for accurate measurement, and with 135 servings per 250 gram container, it offers long term value. The packaging is straightforward and functional, prioritizing product integrity over flashy design.
One potential drawback is the taste: as an unflavored powder, it can have a mild, slightly bitter note when dissolved in plain water. Some users may prefer mixing with strongly flavored beverages to mask this. Additionally, the powder format is less travel friendly than capsules, though it allows for flexible dosing.
Overall, the Nutricost Magnesium Glycinate Powder is an excellent choice for anyone seeking a pure, potent, and affordable magnesium supplement. Its high absorption rate, clean ingredient list, and large serving count make it a solid addition to a daily wellness routine. We recommend it for those prioritizing efficacy and value over convenience.
Product: Nutricost Magnesium Glycinate Powder
Size: 8.82 Ounces (250 Grams) per bottle, pack of 1
Servings: Approximately 135 servings
Magnesium per serving: 210mg
Form: Unflavored powder
Dietary features: Non-GMO, Gluten Free
Manufacturing: Made in an NSF certified, GMP compliant, FDA registered facility
Item weight: 0.55 pounds
Pros
- High absorbability due to glycine chelation.
- Gentle on the stomach compared to other magnesium forms.
- Supports multiple bodily systems including muscle, nerve, heart, and bone.
- Trusted brand with rigorous quality testing.
- Good value with 180 tablets per bottle.
Cons
- Requires taking two tablets per serving for standard dosage of 200 mg.
- Tablets may be slightly larger for some individuals; check dimensions for swallowing ease.
- Price may be higher than basic magnesium oxide supplements, though justified by absorbability.
NOW Supplements Magnesium Glycinate offers a highly absorbable form of magnesium chelated with glycine, ideal for individuals with sensitive stomachs or those looking to improve magnesium status without digestive upset. Each tablet provides 100 mg of magnesium, with a recommended serving of two tablets taken once or twice daily with food.
The standout feature of this supplement is its use of magnesium glycinate, which is known for superior absorption and reduced laxative effect compared to magnesium oxide or citrate. It effectively supports muscle relaxation, nerve transmission, and heart health, making it a versatile choice for athletes, seniors, or anyone managing stress and sleep quality.
NOW is a family-owned manufacturer since 1968, and this product carries GMP quality assurance with third-party testing for stability and potency. The tablets are off-white and typical in size, though some users may find them slightly larger than standard supplements. No artificial additives are mentioned, aligning with the brand's commitment to natural products.
A potential drawback is the moderate per-tablet dose; achieving a typical 200-300 mg daily intake requires multiple tablets. Additionally, the price point reflects the premium form of magnesium, which may be a consideration for budget-conscious buyers. However, the enhanced absorbability and quality control justify the cost for many users.
Overall, NOW Supplements Magnesium Glycinate is a reliable choice for those seeking a well-tolerated, effective magnesium supplement. It combines science-backed formulation with trusted manufacturing, earning a strong recommendation for daily wellness support.
Buying Guide
Dosage and Serving Size
Magnesium glycinate comes in various potencies, and the dosage you need depends on why you’re supplementing. NOW provides 100 mg per tablet, with a recommended intake of 2 tablets up to twice daily, giving you flexibility to start low. Nutricost offers 210 mg per serving (3 capsules) and also sells a powder form for those who prefer mixing into drinks. If you need a higher dose per serving, Nutricost’s capsules deliver more elemental magnesium per swallow.
For sleep support, many users find 200 to 400 mg effective. Compare that to other forms in our Thorne vs Nature Made comparison.
Form and Convenience
NOW offers tablets, while Nutricost provides both capsules and an unflavored powder. Capsules are easy to swallow, but if you dislike swallowing pills, the powder is a great alternative. Nutricost’s powder comes with a scoop and mixes easily into water or smoothies. Consider your daily routine: tablets are portable, powder is more versatile.
If you’re using magnesium for sleep, you might also explore ashwagandha and magnesium for sleep for synergistic benefits.
Purity and Quality Assurance
Both brands prioritize quality. NOW is family-owned since 1968 and its in-house labs are ISO/IEC accredited for stability and potency verification. Nutricost manufactures in NSF certified, GMP compliant facilities and subjects each batch to third-party evaluation. Neither uses artificial fillers or gluten, making them suitable for sensitive individuals. Always look for third-party certification to ensure what’s on the label matches what’s inside.
Value for Money
While we don’t list prices, consider cost per serving. Nutricost’s 360-capsule bottle offers many servings, making it economical for long-term use. NOW’s 180-tablet bottle is also competitively priced. If you prefer a lower dose, NOW may last longer per bottle; if you need higher doses, Nutricost’s powder or larger capsule count could be more cost-effective. Assess your daily needs and choose accordingly.
For more on natural sleep aids, see our valerian root benefits for sleep.
Final Thoughts
Both NOW Magnesium Glycinate and Nutricost Magnesium Glycinate are excellent choices, but they cater to slightly different preferences. If you want a trusted brand with a long history and flexible dosing, NOW Supplements, Magnesium Glycinate 100 mg is a solid pick. If you prefer a higher dose per serving or a powder form, Nutricost Magnesium Glycinate Capsules (or the powder version) offers great versatility. Ultimately, the best choice depends on your dosage needs and format preference. Both will support your magnesium goals effectively.
Frequently Asked Questions
Is NOW or Nutricost magnesium glycinate better for sleep?
Both work well because magnesium glycinate is known for its calming effects. NOW provides 100 mg per tablet, so you can take two before bed. Nutricost’s 210 mg per serving may be more convenient if you need a higher dose. Start with a lower dose and adjust as needed. For additional sleep support, consider combining with valerian root.
Can I take NOW and Nutricost magnesium glycinate together?
It’s not recommended to take both simultaneously unless you calculate total elemental magnesium. Overdoing magnesium can cause digestive upset. Stick to one brand and follow the serving size. If you need more, choose a higher-dose product from either brand.
Which brand has better absorption?
Both use magnesium bisglycinate, which is highly absorbable and gentle on the stomach. There’s no significant difference in absorption between NOW and Nutricost. The key is consistency: take your chosen supplement with food for optimal uptake.
Are there any artificial ingredients in these supplements?
No. Both brands avoid artificial colors, flavors, and preservatives. NOW’s tablets are made with minimal excipients, and Nutricost’s capsules are non-GMO and gluten-free. Always check the label for your specific dietary needs.
