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Product features.
A good fit for A capsule with one stated magnesium form.
- The current formula identifies bisglycinate without other magnesium forms.
- The table declares 200mg elemental magnesium per two capsules.
- The published ingredients list is magnesium bisglycinate and plant-cellulose capsule.
Two capsules form the published comparison serving; older versions of this model have different amounts.
Read the ingredient evidence.
Magnesium glycinate — Magnesium’s nutritional role is established; a short bisglycinate sleep trial found only a small benefit. Benefits, women’s context & cautions
These findings concern the stated ingredient or studied preparation. The finished formula and retail version may differ.
Check the exact version, pack size and seller terms before buying.
The details that matter.
- Magnesium form
- Bisglycinate
- Declared amount
- 200mg elemental magnesium per two capsules
- Current range
- High Potency formula
- Checked purchase option
- 120 capsules / 200 mg per two capsules
- Compare elemental magnesium rather than the larger bisglycinate compound weight.
- Check the bottle version; older indexed pages describe a previous formulation.
Cycling & duration.
Ingredient timeframes describe the cited preparation; they do not establish a cycle for every finished formula.
Magnesium glycinate
- On/off pattern
- No established magnesium-glycinate on/off schedule.
- Duration & evidence
- Nutrition-related use follows the assessed need. Study duration only: a 2025 bisglycinate sleep trial assessed 4 weeks, not an indefinitely repeatable sleep course.
- When to review
- Review elemental magnesium intake, digestive tolerance and kidney health; review persistent poor sleep separately.
- The short sleep trial does not establish long-term effectiveness or a required washout.
- Kidney impairment can increase magnesium toxicity risk; taking periodic breaks is not a substitute for review.
Duration sources: NIH ODS: magnesium · Magnesium bisglycinate and poor sleep: four-week trial. Checked 2026-11-06.
Read the guide to supplement cycling, courses and review periods
How we assessed it.
Exact Amazon UK product identity, selected variant, buying option and product photograph checked on 6 November 2026. Manufacturer references are retained for model context; Gram Health has not physically tested this product.
Retailer source: Amazon UK: Viridian High Potency Magnesium Bisglycinate - 120 capsules / 200 mg per two capsules · Details checked 2026-11-06.
Viridian — High Potency Magnesium Bisglycinate
These features explain the choice; individual fit, taste and health suitability can differ. Current stock, price and seller terms belong to the specific listing.
Read the context.
Explore the topic and make the product details useful.
Understand magnesium
The ingredient, its role and the details to compare before buying.
Magnesium labels: amount, form and serving
Learn why a compound name and a large number on the pack do not tell the whole story.
How to read a supplement label
Serving sizes, ingredient forms, units and warnings: a simple way to see what a product actually contains.
