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Life Extension

Fast-C and Bio-Quercetin Phytosome

1 Tablet · 60 servings

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What it does

A combination of 6 label ingredients.

Quercetin

Form not confirmedGrade —

May slightly lower blood pressure in some adults; findings do not establish cardiovascular protection or every preparation’s benefit.

Black Pepper Extract

Form not confirmedGrade —

Can increase curcumin absorption; whether this improves health outcomes remains uncertain.

Immune
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Ingredients (7)

IngredientDoseTarget/referenceForm

Calcium

79 mg

Trace amount — not scored

Other ingredients

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Vegetable StearateLubricant

A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

Lab testing

How to take it

With a meal containing fat

On the label

Take one (1) tablet once or twice daily with or without food, or as recommended by a healthcare practitioner.

Price check

$16.57

$0.28 / serving

$20$50

Cheaper than 91% of 71 quercetin supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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.

Not medical advice. Consult your healthcare professional.

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