US
Nature's

Nature's Bounty Milk Thistle

  • Milk Thistle
  • Capsule
  • Milk Thistle
  • 100
4.7/ 5 on Amazon1,567Amazon ratings1,000+bought last month4.3ProductDome score
  • Better rated than 71%
  • More reviewed than 70%
Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a straightforward single-ingredient milk thistle softgel

A plain 175mg milk thistle softgel in a 100-count bottle, suited to people who want a single-ingredient option rather than a stacked formula.

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ProductDome scorecard

How it ranks among the 76 milk thistle we track

4.3/ 5ProductDome scoreMedium confidence
Owner satisfaction · 56% of scorecategory median 4.5★4.7

4.7★ across 1,567 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 788 ratings4.0

1,567 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.1

1,000+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 76 milk thistle we track - how the scorecard works · full milk thistle data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A single-ingredient milk thistle softgel from Nature's Bounty, dosed at 175mg per softgel, sold in a 100-count gluten free bottle for liver health support.

Unlike combination liver formulas that stack multiple herbs, this is a plain milk thistle product from an established supplement brand, at a lower per-serving dose than some concentrated formulas. It's a straightforward option if you want milk thistle without extra ingredients.

  • 175mg milk thistle per softgel
  • 100 softgels per bottle
  • Gluten free
  • Nature's Bounty brand

Who it's for

Fits people who want a simple, single-ingredient milk thistle supplement without dandelion, artichoke or other additions. Not for anyone seeking a higher-concentration or multi-ingredient liver formula.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Single-ingredient milk thistle, no added herbs
  • Established supplement brand
What to check first
  • Lower dose than concentrated extract formulas
  • No standardized silymarin percentage listed

Performance notes

At 175mg per softgel, this sits at a more modest dose than concentrated milk thistle extracts, reflecting a basic single-ingredient approach rather than a standardized-percentage extract.

Specifications

BrandNature's
Model3491
FormCapsule
Supplement TypeMilk Thistle
Count100
Flavor175 mg
DietGluten Free

How it compares

This product against the closest alternatives we track in milk thistle.

ProductAmazon ratingRatingsProductDome score
Nature's Bounty Milk ThistleThis product4.7 / 51,5674.3 / 5
Bronson Milk Thistle Silymarin Marianum & Dandelion Extract Liver Health SupportBronson4.7 / 539,9094.6 / 5
Zazzee USDA Organic Milk Thistle 30:1 ExtractZazzee4.7 / 511,6914.6 / 5
Nutricost Milk Thistle Extract 240 Capsules for 240 Servings Per BottleNutricost4.8 / 54,9734.6 / 5
Puritan's Pride Milk Thistle 4:1 Concentration Extract 250 mgPuritan's4.6 / 528,1074.6 / 5
Frequently asked

Questions about the Nature's 3491

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much milk thistle is in each softgel?

175mg.

How many softgels are in the bottle?

100.

Does this contain gluten?

No, it's labeled gluten free.