BioStacks
Source Naturals

Mega Strength Beta Sitosterol, 375 mg

1 Tablet × 3/day · 120 servings

iHerbAmazon
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What it does

A combination of 2 label ingredients.

Phytosterols

Mixed formsGrade —

Adequate amounts of phytosterols can lower LDL cholesterol in adults; this does not establish fewer heart attacks or strokes.

Calcium

calcium phosphateBudget

Supports the maintenance of normal bones and teeth, muscle function and nerve signaling.

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Ingredients (5)

Calcium

32 mg

Trace amount — not scored

Other ingredients

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Calcium CarbonateBuffer

Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

Microcrystalline CelluloseBinder

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

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 or without food
Split into 3 doses across the day

On the label

1 tablet 3 times daily, just before or with any meal containing fat.

Price check

$15.93

$0.13 / serving

$10$20$50

Cheaper than 70% of 20 phytosterols 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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