What exact ingredients did the FDA find in LipoFit Turbo and what are their health risks?

Checked on January 21, 2026
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Executive summary

FDA laboratory testing found that the weight‑loss supplement LipoFit Turbo contained four undeclared pharmaceutical drugs—sibutramine, metformin, fluoxetine and furosemide—creating potentially serious safety risks for consumers; the agency is advising people not to purchase or use the product [1]. The specific risks called out by the FDA include cardiovascular danger from sibutramine, life‑threatening lactic acidosis linked to metformin, and psychiatric and bleeding/seizure risks from fluoxetine, while the broader issue—undeclared prescription drugs in so‑called supplements—is tied to documented life‑threatening outcomes and regulatory action [1] [2] [3].

1. What the FDA actually found in LipoFit Turbo and why it matters

FDA laboratory analysis explicitly confirmed that LipoFit Turbo contains sibutramine, metformin, fluoxetine and furosemide even though those drugs were not listed on the product label, a classic example of medication health fraud that turns an over‑the‑counter “supplement” into an undeclared drug cocktail [1]. The agency’s publication makes the point that products surreptitiously spiked with prescription medicines pose direct threats to consumers because users lack medical oversight, dosing guidance and warnings about dangerous interactions—precisely why the FDA is warning against purchase and use [1] [2].

2. Sibutramine: a banned weight‑loss drug with cardiovascular danger

Sibutramine is a controlled substance that was removed from the U.S. market in late 2010 after studies showed it increases the risk of heart attack and stroke, and the FDA notes it can substantially increase blood pressure and/or heart rate—especially hazardous for people with coronary artery disease, heart failure, arrhythmias or prior stroke [1] [3]. The FDA also warns that some tainted products deliver doses many times higher than medically prescribed, raising the risk of tachycardia, palpitations and even seizures in previously healthy consumers [3].

3. Metformin: a diabetes medicine that can cause fatal lactic acidosis

Metformin is an FDA‑approved prescription drug for type 2 diabetes, but when consumed without medical supervision it carries the risk of lactic acidosis, a rare but potentially fatal buildup of lactic acid in the blood; the FDA specifically flagged metformin’s presence in LipoFit Turbo as a serious safety concern [1]. Because metformin dosing and monitoring depend on kidney function and other comorbidities, unsuspecting users of a mislabeled product can develop life‑threatening complications without routine medical checks [1].

4. Fluoxetine: an antidepressant with psychiatric and bleeding/seizure risks

The FDA report lists fluoxetine—a prescription SSRI used for depression, bulimia and OCD—among the undeclared ingredients in LipoFit Turbo and flags its known serious side effects, including possible suicidal thinking, abnormal bleeding and seizures, all of which normally require clinician oversight and counsels against unsupervised use [1]. Combining fluoxetine with other prescription drugs or substances hidden in a supplement can amplify psychiatric or neurologic risks, a factor regulators use to underscore the danger of adulterated weight‑loss products [1].

5. Furosemide and the limits of the available reporting

FDA testing also identified furosemide in LipoFit Turbo, completing the list of four undeclared drugs cited by the agency, but the specific FDA notice available in the provided reporting emphasizes the presence of furosemide without detailing the drug’s full risk profile in that notice; what the FDA does make clear is that any unlisted prescription drug in a consumer product is a public‑health risk [1] [2]. The broader FDA initiative against contaminated weight‑loss products notes that many such adulterated products have led to severe health issues and hospitalizations and that the agency is pursuing recalls and enforcement where possible [4] [3].

6. Context, enforcement and what’s left unresolved

The FDA’s disclosure of LipoFit Turbo’s ingredients sits within a wider pattern the agency has catalogued of dietary supplements and weight‑loss products being adulterated with drugs—an enforcement challenge the agency says it cannot fully eliminate because it cannot test every product on the market, so it issues targeted warnings and seeks recalls, inspections and other actions where possible [4] [3]. The provided reporting does not include any response from LipoFit Turbo’s manufacturer or retailers, nor detailed adverse event case reports tied to this specific product in the snippets available, so questions about how widely distributed the product was and whether clinicians have seen related harms remain open in the public record [1] [3].

Want to dive deeper?
What adverse events have been reported to the FDA related to LipoFit Turbo since the agency warning?
How does the FDA detect and prioritize testing of potentially adulterated weight‑loss supplements?
What legal or regulatory actions has the FDA taken against sellers of supplements found to contain sibutramine, metformin, fluoxetine, or furosemide?