Ab Slim Review
In June 2018, FDA laboratory testing found Ab Slim contains three undisclosed drug ingredients — sibutramine, phenolphthalein, and sildenafil (the active ingredient in Viagra) — none of which appear anywhere on the label. This Ab Slim review checked what that finding means, and how serious it actually is. Table of content How We Researched This […]

In June 2018, FDA laboratory testing found Ab Slim contains three undisclosed drug ingredients — sibutramine, phenolphthalein, and sildenafil (the active ingredient in Viagra) — none of which appear anywhere on the label. This Ab Slim review checked what that finding means, and how serious it actually is.
How We Researched This Ab Slim Review
This Ab Slim review checked the FDA’s 2018 public notification directly, the published research on Ab Slim’s listed botanical ingredients, and documented user side-effect reports.
Ab Slim Review: What Is It?
Ab Slim is a capsule marketed to reduce food cravings and promote weight loss, listing rhizoma atractylodis macrocephalae, cassia seed, licorice, dried ginger, and ginseng as its ingredients, taken once daily before lunch.
What the Research on the Listed Botanical Ingredients Shows
- Scientific Reports: rhizoma atractylodis macrocephalae shows genuine anti-inflammatory and anti-obesity activity in accumulating research.
- Molecules: cassia seed has real, strong antioxidant properties, though no research connects it to weight loss specifically.
- Critical Reviews in Food Science and Nutrition: ginger genuinely can help with weight loss — a real, if modest, supporting finding.
A Serious, Direct FDA Safety Finding
This is the single most important fact about this product: FDA laboratory testing directly confirmed Ab Slim contains three undisclosed drugs — sibutramine (banned in 2010 over cardiovascular harm), phenolphthalein (a laxative removed from the market over cancer risk concerns), and sildenafil (a prescription erectile dysfunction medication with real interaction risks, especially for anyone on nitrate medications). None of these are declared on the label — this is a genuine, confirmed adulteration finding, not a marketing concern.

Why Sildenafil in a Diet Pill Is a Real, Serious Risk
This deserves specific attention: sildenafil interacts dangerously with nitrate medications (commonly prescribed for heart conditions), and its presence in an undisclosed weight-loss product means anyone taking such medications could face a serious, unexpected drug interaction with no warning on the label.
No Legitimate Research Behind the Product Itself
Beyond the adulteration finding, no documented clinical research supports Ab Slim’s formula or weight-loss claims as a complete product — even setting aside the hidden drug ingredients, there’s no legitimate evidence basis for its marketing.
Real, Documented Side Effects
User reports describe increased heart rate, jitteriness, headache, nausea, and dizziness — effects consistent with undisclosed stimulant and drug content rather than the natural botanical formula advertised.
Does Ab Slim Work?
This question is largely beside the point given the FDA’s direct finding. Whatever effects users experience likely stem from undisclosed, potentially dangerous drug ingredients rather than the advertised natural formula — a serious, confirmed safety issue that overrides any consideration of the listed botanicals’ individual merits.
Who Ab Slim Actually Makes Sense For
Given the FDA’s direct, laboratory-confirmed finding of three undisclosed drugs — including one with serious interaction risk for heart patients — this product is not something we can responsibly recommend for anyone.
Frequently Asked Questions
The Bottom Line
Ab Slim carries a direct, laboratory-confirmed FDA finding of three undisclosed drug ingredients, including one with serious interaction risk for heart patients. This Ab Slim review found a product with a serious, confirmed safety issue that makes it unsuitable to recommend regardless of its advertised botanical ingredients.
Explore more Weight Loss Program reviews and guides on our site.


