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FSSAI Schedule II Sleep / Recovery Form matters enormously

Best Magnesium
Supplement in India 2026

5 Indian magnesium brands evaluated across five forms. The form is the entire purchasing decision — magnesium oxide (most pharmacy products) has ~4% bioavailability. Glycinate has ~80%. This 20× gap renders price-per-tablet comparisons meaningless without accounting for the form.

5
Brands evaluated
~80%
Bioavailability of glycinate vs ~4% oxide
₹7.5
Best ₹/day for Mg glycinate
May '26
Prices verified
Quick picks — May 2026
🏆 Best Overall
Himalayan Organics
Magnesium Glycinate — 120 caps
7.6/10
₹899 · ₹7.5/day · 400mg elemental Mg
🏅 Best bisglycinate
Carbamide Forte
Magnesium Bisglycinate — 90 tabs
7.4/10
₹799 · Pure bisglycinate chelate
💰 Budget citrate
HealthKart HK Vitals
Magnesium (citrate + oxide) — 90 tabs
6.4/10
₹599 · Partial citrate — check form label
🚫 Avoid
Pharmacy brands
Magnesium Oxide 500mg tablets
3.0–4.5/10
~4% bioavailability — mostly laxative effect
Category score
7.6/10
Magnesium (Glycinate / Bisglycinate form)

Good evidence for sleep, blood pressure, and muscle function. The India-specific problem: most pharmacy magnesium products use oxide — the lowest bioavailability form. Indian cereal-heavy diets are high in phytate, further reducing Mg absorption from food. The form selection is the entire decision.

Evidence 7.5 Dose 8.0 India fit 8.0 Safety 8.5 Label accuracy 6.0
20×
Magnesium glycinate has ~20× higher bioavailability than magnesium oxide (80% vs 4%, Firoz & Graber 2001). A 500mg oxide tablet delivers ~20mg absorbed magnesium. A 200mg glycinate capsule delivers ~160mg. Most Indian pharmacy supplements use oxide. The elemental Mg number on the label is meaningless without knowing the form.

The form hierarchy

Full deep-dive →
Best
Glycinate
Bisglycinate
~80%
Good
Malate
Threonate
~60–70%
Adequate
Citrate
Lactate
~30–40%
Poor
Sulfate
Chloride
~15–20%
Avoid
Oxide
~4%
34
RCTs in Zhang et al. 2016 meta-analysis confirming blood pressure reduction with Mg supplementation
300+
Enzymatic reactions requiring magnesium as a cofactor — including every ATP-producing reaction in the body
48%
Estimated proportion of Indian adults consuming below the RDA for magnesium (310–420mg/day)
Mg²⁺ (intracell.) 300+ enzymes NMDA antagonism → calm / sleep ATP-Mg cofactor → energy / muscle BP ↓ · Sleep ↑ Muscle cramps ↓ Insulin sensitivity ↑
Fig. 1 — Magnesium acts as a cofactor in 300+ enzyme reactions including all ATP synthesis steps. Its NMDA receptor antagonism underlies sleep and anxiolytic effects. Vascular smooth muscle relaxation drives blood pressure reduction.
🇮🇳

Why phytate makes India's Mg gap worse than dietary surveys suggest

Indian diets are theoretically adequate in magnesium — green vegetables, pulses, and whole grains all contain meaningful amounts. The problem is phytic acid. Phytate in chapati, rice, and dal chelates divalent minerals including Mg²⁺, reducing absorption by 30–60% depending on food preparation method. Urban meal preparation (less fermentation, less soaking of pulses) has reduced phytate degradation compared to traditional cooking. The net absorbed magnesium from a standard North Indian meal is significantly lower than food composition tables suggest.

⚠️

The elemental Mg label trap

A product labelled "Magnesium 500mg" may contain 500mg of magnesium oxide (delivering ~20mg absorbed Mg) or 500mg of a glycinate compound (delivering ~50mg elemental Mg at ~80% absorption = ~40mg absorbed). Always look for the form and elemental Mg per serving, not the compound weight. Many Indian labels show compound weight as the headline number.

Brand breakdown

🏆 Best Overall
Himalayan Organics
Magnesium Glycinate — 120 capsules
7.6/10
₹899/120 caps
May 2026

400mg elemental magnesium per serving as magnesium glycinate — declared on the label and consistent with clinical dosing. ₹7.5/day. The glycinate form ensures meaningful absorption rather than the oxide-dominated profiles of most pharmacy alternatives. Product uses a combination of Mg citrate and Mg glycinate — the glycinate fraction is the primary driver of the high bioavailability claim.

COA available on request (not proactively published per batch). No NABL accreditation disclosed. Minor transparency gap, but the product clearly declares its form and elemental Mg content — which already puts it ahead of most competitors. FSSAI licensed.

🇮🇳 FSSAI Licensed Glycinate form declared Elemental Mg stated per serving COA on request
FormGlycinate + Citrate blend
Elemental Mg/serving400mg
Bioavailability (form)~70–80% (glycinate-dominant)
COA statusOn request
FSSAILicensed ✓
₹/day₹7.5
🏅 Best Pure Bisglycinate
Carbamide Forte
Magnesium Bisglycinate — 90 veg tablets
7.4/10
₹799/90 tabs

Pure magnesium bisglycinate chelate — no oxide, no citrate filler. 300mg elemental Mg per serving. The pure chelate form avoids any dilution with lower-bioavailability forms that can occur in "glycinate blend" products. Carbamide Forte publishes a product COA (not NABL-accredited, brand-conducted). Form declaration is clear and unambiguous on the label.

At ₹8.88/day it's slightly more expensive per day than Himalayan Organics, but the pure bisglycinate declaration is a meaningful quality signal for buyers who want certainty about the form they're taking.

🇮🇳 FSSAI Pure bisglycinate chelate Brand COA published
FormPure bisglycinate chelate
Elemental Mg/serving300mg
Bioavailability~80% (bisglycinate)
COA statusBrand published, not NABL
₹/day₹8.88
💰 Budget option — partial citrate
HealthKart HK Vitals
Magnesium — 90 tablets
6.4/10
₹599/90 tabs

Magnesium citrate + oxide blend. The citrate component provides adequate bioavailability (~30–40%); the oxide component contributes elemental Mg volume on paper but minimal absorbed Mg. The blended formula is better than pure oxide but significantly worse than pure glycinate. Elemental Mg per serving and the exact citrate:oxide ratio are not clearly declared — a label transparency issue.

🇮🇳 FSSAI Oxide blend — partial bioavailability Citrate:oxide ratio not declared
FormCitrate + Oxide blend
Elemental MgNot clearly declared
Bioavailability~25–35% (blended estimate)
₹/day₹6.66
🚫 Avoid — Oxide form
Multiple pharmacy brands
Magnesium Oxide 500mg tablets
3.0–4.5/10
₹200–400/60 tabs

Magnesium oxide dominates pharmacy shelves because it is cheap to manufacture and has the highest elemental Mg percentage by weight (60%). However, Firoz & Graber (2001) showed ~4% bioavailability for oxide in controlled conditions. A 500mg oxide tablet delivers approximately 20mg absorbed elemental Mg — requiring 15–20 tablets to reach the 300–400mg therapeutic dose. This category scores 3.0–4.5 because oxide is useful as an osmotic laxative, not as a meaningful magnesium supplement.

~4% bioavailability 20× less absorbed vs glycinate
FormOxide
Bioavailability~4% (Firoz & Graber 2001)
Absorbed Mg / 500mg tablet~20mg
Primary useLaxative — not supplementation
Full comparison — all 5 brands (May 2026 prices)
BrandPriceFormElemental Mg/servingBioavailability₹/dayScore
H
Himalayan Organics Glycinate
120 caps · Best Overall
₹899/120
Glycinate + Citrate400mg~70–80%₹7.57.6
C
Carbamide Forte Bisglycinate
90 tabs
₹799/90
Pure Bisglycinate300mg~80%₹8.887.4
P
Pure Nutrition Magnesium Glycinate
90 caps
₹1,199/90
Glycinate350mg~75%₹13.37.2
H
HealthKart HK Vitals Magnesium
90 tabs
₹599/90
Citrate + Oxide blendNot declared clearly~25–35%₹6.666.4
?
Pharmacy Magnesium Oxide 500mg
Multiple brands
₹200–400/60
Oxide300mg (58% elemnl.)~4%₹5–83.0–4.5

Scoring rubric

How we score →

1. Evidence quality

7.5/10

Zhang et al. (2016) meta-analysis of 34 RCTs confirms BP reduction with supplementation. Abbasi et al. (2012) confirmed improved sleep quality. Rodwell (2018) confirmed role in insulin sensitivity. Evidence is good but notably weaker than creatine or protein — many RCTs have small sample sizes and heterogeneous populations. The cofactor role in 300+ enzymes is mechanistically established; clinical supplementation benefits in non-deficient populations are modest.

2. Dosage confidence

8.0/10

300–400mg elemental Mg/day for general supplementation, matching the adult RDA. Sleep-specific benefits established at 250–500mg glycinate/day. Blood pressure benefit at 368–500mg/day elemental Mg. Dosage targets are well-defined relative to RDA. However, dosage confidence is complicated by form variability — 300mg elemental Mg from oxide delivers ~12mg absorbed; from glycinate ~240mg absorbed. The dose number on the label is only meaningful if the form is known.

3. India market fit

8.0/10

FSSAI Schedule II. Phytate-heavy Indian diets reduce dietary Mg absorption significantly. Stress (a major Mg depleter via urinary excretion), heat (India's climate accelerates sweat-based Mg loss), and widespread use of proton pump inhibitors (which reduce Mg absorption) create elevated need in the Indian population. Glycinate products are available at ₹7–9/day — genuinely accessible.

4. Safety profile

8.5/10

Excellent safety record at RDA doses. The body efficiently excretes excess Mg via the kidneys. GI discomfort (loose stools) at higher doses is the primary adverse effect — glycinate form has significantly better GI tolerability than oxide or citrate. Contraindicated in severe renal failure (kidneys cannot excrete excess). No drug interactions at standard doses except with certain antibiotics (tetracyclines, fluoroquinolones) where Mg chelation can reduce antibiotic absorption — separate by 2 hours.

5. Label accuracy

6.0/10

The lowest label accuracy score in this guide. Multiple issues: (1) Many products list compound weight rather than elemental Mg — a 500mg oxide tablet contains 300mg elemental Mg, not 500mg. (2) "Glycinate blend" products can contain only a small glycinate fraction without specifying the ratio. (3) The oxide-dominant pharmacy products rarely declare their form prominently. COA publication is minimal across the category. Only Carbamide Forte explicitly declares pure bisglycinate chelate without ambiguity.

How to use it

General supplementation
300–400mg elemental Mg/day
Matches the adult RDA (RDA = 310–420mg/day depending on age/sex). Take with meals to reduce GI discomfort. Glycinate or bisglycinate form preferred. Split into 2 doses if taking 400mg+ to improve tolerability.
Sleep quality
200–400mg elemental Mg
Glycinate specifically — glycine has independent sleep benefits via NMDA modulation and core temperature reduction. Take 1–2 hours before bed. Abbasi et al. 2012 used 500mg Mg oxide (only ~20mg absorbed) and still showed benefit — glycinate at same elemental dose likely provides larger effect.
Blood pressure
368–500mg elemental Mg/day
Zhang et al. 2016 confirms ~2mmHg systolic reduction per 240mg/day increase in Mg intake. Benefits are modest and additive with dietary approaches. Not a replacement for antihypertensive medication but a meaningful adjunct.
Timing note
With food or before bed
With food reduces GI discomfort. Before bed for sleep applications. Avoid with antibiotic doses (tetracyclines / fluoroquinolones) — separate by 2 hours to prevent chelation of the antibiotic by Mg.

Frequently asked

Why is magnesium oxide the wrong form to buy?
Magnesium oxide has approximately 4% elemental magnesium bioavailability in controlled absorption studies (Firoz & Graber, 2001). A 500mg oxide tablet delivers roughly 20mg absorbed magnesium. To reach the 300–400mg therapeutic dose from oxide alone, you would need 15–20 tablets daily — impractical and likely to cause osmotic diarrhoea. Oxide is useful as an osmotic laxative (it draws water into the colon) but is not an appropriate form for systemic magnesium supplementation.
What is the difference between magnesium glycinate and bisglycinate?
They describe the same compound. Bisglycinate is the technical name (one Mg ion bonded to two glycine molecules). Glycinate is the common shorthand. Both mean the same chelated form. The important distinction is whether the product contains pure bisglycinate chelate (as in Carbamide Forte) vs a "glycinate blend" that may contain a mix of glycinate and cheaper oxide or citrate. Always check whether the glycinate proportion is specified on the label.
Can magnesium improve sleep?
Yes — with caveats. Abbasi et al. (2012) RCT showed improved ISI sleep score and sleep efficiency in elderly adults supplemented with Mg. The mechanism involves NMDA receptor antagonism (reducing excitatory activity before sleep) and Mg's role as a cofactor in melatonin synthesis enzyme (AANAT). The glycinate form provides dual benefit — glycine independently improves sleep quality via NMDA modulation and core body temperature reduction. Evidence is strongest in individuals with borderline Mg deficiency. Effect size in Mg-replete individuals is smaller but still documented.
Why do I get loose stools from magnesium?
Unabsorbed magnesium in the colon attracts water osmotically — the same mechanism that makes Mg oxide effective as a laxative. This effect is dose-dependent and form-dependent. Glycinate and bisglycinate forms are almost fully absorbed in the small intestine, leaving minimal Mg to reach the colon. Oxide and citrate at high doses are more likely to cause GI effects. If you experience loose stools on glycinate, reduce the dose and split it across two meals.

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Last reviewed: May 12, 2026
Reviewed by: Naked Compound Research Team
No brand paid to appear on this page

Affiliate disclosure. Naked Compound participates in the Amazon Associates India programme. Commission does not influence scores or rankings. conflicts-policy

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