BioStacks
Best for
Ingredients (1)
Magnesium
100%Dose
375 mg
Target
100–400 mg
Form
Not listed
Other Ingredients (6)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Coating (unspecified)Coating
Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
PolyvinylpyrrolidoneBinder
A synthetic polymer used as a tablet binder and film former
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Best taken in the evening
Often taken at night for relaxation and sleep, but absorption is the same anytime — consistency matters most.
With or without food
Space it a couple of hours from Iron and Calcium
On the label
TWO TABLETS PER DAY WITH YOUR MAIN MEAL Swallow with water or a cold drink. Not to be chewed. Do not exceed the recommended intake. A regular intake is recommended. Suitable for vegetarians Suitable for vegans No artificial colours No preservatives No lactose Gluten free No yeast Ultra Magnesium is not tested on animals
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
£5.95≈ $7.56
Cheaper than 98% of 614 magnesium supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.