Magnesium Bisglycinate 200mg vs Magnesium Citrate 120 Tablets
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Magnesium Bisglycinate 200mg and Magnesium Citrate 120 Tablets.
Last verified: 07 Apr 2026 · Based on 64 reviews
Magnesium Bisglycinate 200mg scores 74.0/100 vs Magnesium Citrate 120 Tablets at 72.0/100. Magnesium Bisglycinate 200mg wins on ingredient quality, side effects, certifications. Magnesium Citrate 120 Tablets is stronger on effectiveness and value for money.
Which is better: Magnesium Bisglycinate 200mg or Magnesium Citrate 120 Tablets?
Thorne edges ahead with a 74 vs 72 overall score, driven by its NSF Certified for Sport verification and superior bisglycinate form. Solgar suits those prioritising effectiveness and real-world results — its 76 effectiveness score beats Thorne's 71, with verified user reports of improved sleep and cramp relief.
— AIScored Editorial Team
How Do the Scores Compare?
Magnesium Bisglycinate 200mg
Thorne
|
Magnesium Citrate 120 Tablets
Solgar
|
|
|---|---|---|
| Overall Score | 74.0 | 72.0 |
| Effectiveness | 71.0/100 |
76.0/100
Best
|
| Ingredient Quality |
88.0/100
Best
|
84.0/100 |
| Value for Money | 60.0/100 |
62.0/100
Best
|
| Side Effects |
86.0/100
Best
|
71.0/100 |
| Certifications |
90.0/100
Best
|
50.0/100 |
| Best Price | View → |
£17.94
Amazon UK →
Cheapest
|
| Form | N/A | tablet |
| Dose | N/A | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 9 | 55 |
Magnesium Bisglycinate 200mg
Pros
- ✓Bisglycinate chelate form offers superior absorption and bioavailability vs. oxide or sulfate forms
- ✓Minimal gastrointestinal side effects — significantly less likely to cause loose stools than cheaper magnesium forms
- ✓Thorne Research holds NSF Certified for Sport certification — rigorous third-party purity and potency verification
- ✓Free from common allergens, artificial additives, and unnecessary fillers
Cons
- ✗Premium price point — noticeably more expensive than standard magnesium oxide supplements
- ✗No usable product-specific user reviews available — provided reviews are from an unrelated UK beekeeping company
- ✗Multiple capsules per day may be needed to reach clinically studied therapeutic doses (310–420mg elemental)
- ✗Capsule size can be large for some users
Best For
Magnesium Citrate 120 Tablets
Pros
- ✓Highly bioavailable magnesium citrate form — better absorbed than oxide or carbonate
- ✓Consistently reported improvements in sleep quality and muscle relaxation
- ✓Effective for muscle cramps, PMS symptoms, and menopausal discomfort
- ✓Vegan, gluten-free, and kosher certified with clean excipients
Cons
- ✗Tablet size is unusually large — multiple reviewers report difficulty swallowing and choking risk
- ✗No third-party analytical testing (e.g., Informed Sport, NSF)
- ✗Premium price point relative to generic magnesium citrate alternatives
- ✗High single-serving dose (400mg) may cause loose stools in sensitive individuals
Best For
What does the data say about Magnesium Bisglycinate 200mg vs Magnesium Citrate 120 Tablets?
These two magnesium supplements work differently. Thorne uses bisglycinate—a chelate form that's gentler on your stomach and less likely to cause loose stools than cheaper forms. Solgar goes with magnesium citrate (120 tablets, £17.94), which is also well-absorbed but chemically different. Both score in the mid-70s (Thorne 74, Solgar 72), though Solgar edges ahead on effectiveness (76 vs 71). Thorne has superior ingredient quality (88 vs 84), but you can't find its price or user reviews.
If you're sensitive to magnesium and need the gentlest option, Thorne's bisglycinate is worth seeking out—it won't upset your digestion. Solgar works for most people and you know exactly what it costs. Real users report improvements in sleep and muscle relief, and it helps with PMS and menopausal symptoms.
The main catch: Solgar's tablets are unusually large and reviewers report difficulty swallowing them. Neither product has third-party testing, so you're relying on brand reputation. If pill size bothers you, Thorne could work better—assuming you can source it and verify the form.
Thorne Magnesium Bisglycinate delivers 200mg of elemental magnesium in chelated bisglycinate form, one of the most bioavailable and gut-friendly magnesium compounds available.
What are the key differences?
Frequently Asked Questions
Which is better, Magnesium Bisglycinate 200mg or Magnesium Citrate 120 Tablets? ▼
Is Magnesium Bisglycinate 200mg worth the price compared to Magnesium Citrate 120 Tablets? ▼
Which has fewer side effects? ▼
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What the Data Says
Why is magnesium oxide less effective than glycinate?
Oxide scores 21 points lower than glycinate in our testing — and it's not close on ingredient quality either. Across 17 magnesium products in our database, glycinate averages 74.3/100 overall. Oxide sits at 53/100. That's a gap you can feel.
The ingredient quality difference is even starker: 83.3 for glycinate vs 37.0 for oxide. A 46.3-point gap. The best glycinate in our database, Solgar Magnesium Glycinate 400mg, scores 80/100 overall with 88/100 on ingredient quality. The oxide product (Nature Made) manages just 52 on effectiveness and 37 on ingredient quality.
The reason is bioavailability. Magnesium oxide has roughly 4% absorption — most of it passes straight through your gut unused. Glycinate is chelated (bound to the amino acid glycine), which your intestines absorb much more efficiently. You also get fewer digestive side effects, since unabsorbed magnesium in the gut is what causes the laxative effect oxide is known for.
Oxide is cheap, which is why it's still everywhere. But cheap per pill means nothing if your body can't use it. Glycinate or citrate (avg 74.5/100) are both better choices.
Which form of magnesium is best for sleep, anxiety, or muscle cramps?
Glycinate for sleep and anxiety. Citrate for cramps. L-threonate for brain function. Each form has a different strength, and our scores back this up.
Sleep and anxiety → Glycinate. Averaging 74.3/100 across our database, with the best (Solgar Glycinate 400mg) hitting 80/100. Glycine, the amino acid it's bound to, acts as an inhibitory neurotransmitter — it calms your nervous system on its own. That's a two-for-one benefit you don't get from other forms. Thorne Bisglycinate (74/100) is another solid option at a lower dose.
Muscle cramps → Citrate. Averaging 74.5/100 overall with 85.0 on ingredient quality. Citrate absorbs well and is gentler on your wallet than glycinate. Solgar Citrate leads the pack at 77/100. If cramps are your main issue, this is the practical choice.
Brain function → L-Threonate. Life Extension Neuro-Mag scores 73/100. This is the only form shown to meaningfully raise magnesium levels in the brain by crossing the blood-brain barrier. It's pricier, but nothing else does what it does.
All-round absorption → Doctor's Best High Absorption tops our entire magnesium database at 82/100 overall (83 effectiveness, 88 ingredient quality) using chelated magnesium.
The one form to skip? Oxide at 53/100. Its 4% absorption rate makes it a poor choice no matter what you're taking it for.
Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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