Lemme Burn: Do these “metabolism gummies” really help you lose weight?

If you’ve spent any time on wellness sites or celebrity-led supplement corners of the internet, you’ve probably noticed a familiar storyline: a buzzy product promises to “boost metabolism,” “torch belly fat,” or “activate” some powerful biological switch—usually in a convenient, candy-like form.

We’ve covered plenty of these fat-burning trends already, from weight loss gummies and cutting jelly to so-called GLP-1 probiotics. Most of the time, the pattern is the same: the claims sound science-y, the marketing is confident, and the actual evidence isn’t enough to support the hype. It’s a familiar formula: take a complex biological process like metabolism, simplify it into a single daily habit, and package it as something easy, enjoyable, and highly shareable.

The latest product on the market to make big promises is Lemme Burn gummies. This product is marketed toward “metabolic support” and comes from Kourtney Kardashian Barker’s supplement brand, Lemme. 

Lemme Burn gummies are a daily dietary supplement made with plant-based compounds and fiber ingredients that are marketed to support metabolism and fat loss. Like many products in the growing “functional gummy” category, they’re designed to feel more like a treat than a traditional supplement—something that can blur the line between wellness and marketing.

The brand highlights a blend of “clinically studied” ingredients designed to influence metabolism-related pathways in the body, including visceral (belly) fat and body composition. But like most dietary supplements, the claims are based on ingredient-level research rather than studies on the product itself.

Even though the product encourages pairing the supplement with diet and exercise, can a daily gummy meaningfully change metabolism or body fat—or are these claims more about marketing than measurable results?

Let’s go through the claims behind Lemme Burn, break down what’s actually in the gummies, and look closely at the research on the key ingredients.

We’ll also put those findings into context—what the studies show, what they don’t, and how this supplement compares to other weight loss approaches. With guidance from Dr. Karen Mann, MD, Noom’s Medical Director, let’s see whether this trend is worth trying or better removed from your online cart.

What are Lemme Burn gummies?

Lemme is a supplement line that claims to use clinically studied ingredients and “premium” botanicals. It sells products for mood, sleep, energy, women’s health, beauty, and weight management. Lemme Burn is their product marketed specifically as a metabolic support and weight-management gummy. 

What are the ingredients in Lemme Burn gummies?

Lemme Burn gummies are made from plant extracts, vitamins, and standard gummy ingredients. Here’s a breakdown of what’s inside—and what the research actually suggests.

Morosil (Moro blood orange extract)

The primary ingredient in Lemme Burn gummies is Morosil red orange fruit extract, which is a patented extract that comes from a specific type of blood orange called a Moro. It has been studied in a small group for weight loss. 

Over 12 weeks, the group taking 400 mg per day of Morosil extract lost about 7.5 pounds on average, compared with about 2.6 pounds in the placebo group, along with somewhat greater reductions in BMI and waist and hip measurements. A follow-up analysis suggested those differences were still present at six months.

That sounds promising—and it’s fair to say the ingredient has some research behind it. But here’s where perspective matters.

But participants weren’t just taking a supplement that was studied in isolation from behavior. They were also receiving diet and lifestyle guidance, and those behaviors were self-reported. That makes it hard to tease apart how much of the change came from the extract itself versus changes in eating patterns or activity levels. And, not surprisingly, the people in the active group lost more weight at six months, which could be due to their habit changes and not the ingredients themselves. 

Black ginger (Kaempferia parviflora) 

Another ingredient in the formula is an extract from black ginger (kaempferia parviflora). In a 12-week randomized study of 83 adults with higher body weight, researchers tested a patented version of the extract against a placebo. People who took the black ginger extract each day saw slightly larger drops in body weight, BMI, and body fat compared with those taking the placebo.

By the end of the study, people taking the extract saw small but measurable changes in body fat and weight compared with the placebo group. Importantly, visceral fat, also called abdominal fat, was lower in the people who took the supplement.

But, Dr. Mann adds important context, “The 100 mg dose used in the study was higher than the 30 mg included in Lemme Burn gummies. Since this isn’t the equivalent dose, we can’t assume the gummy would produce the same effects.”

Vitamins and minerals

Lemme Burn gummies also include vitamins. These nutrients support normal metabolic processes—but they don’t automatically speed up fat loss. Each serving of two gummies contains:

Vitamin B6 (3 mg, 231% RDA*): Helps your body turn the food you eat into usable energy and supports brain and immune function. It’s part of the normal behind-the-scenes work your metabolism already does every day.

Vitamin B12 (25 mcg, 1,042% RDA): Supports healthy nerve function, red blood cells, and DNA production. If you’re deficient, boosting B12 can improve energy levels—but more isn’t necessarily better if your levels are already normal.

Chromium (chromium picolinate, 200mcg): A trace mineral involved in how your body responds to insulin and processes carbs. While some may use it for weight loss and type 2 diabetes, research shows that it only has a moderate effect on glucose metabolism or insulin. 

Other ingredients and sweeteners

Lemme Burn includes pectin to support the gel-like structure, natural flavors, and stabilizers. Organic cane sugar and stevia are used as sweeteners. Each 2-gram gummy serving has 1 gram of added sugar. These ingredients are for texture, taste, and shelf life. 

*Recommended dietary allowance (RDA) is defined as the average daily amount of nutrients needed to meet the requirements of nearly all healthy people in a specific group.

Lemme Burn: Nutrition information

While the calorie and sugar content are relatively low, the percentages for certain vitamins and chromium are high. It’s important to remember that exceeding 100% of the RDA for vitamins involved in energy metabolism does not necessarily translate to increased fat burning—especially if you’re already meeting your nutritional needs.

Nutrient	Amount per serving (2 gummies)	% RDA
Calories	15	—
Total carbohydrate	5 g	—
Total sugars	1 g	—
Vitamin B6	3 mg	231% RDA
Vitamin B12 (as methylcobalamin)	25 mcg	1042% RDA
Chromium (as chromium picolinate)	200 mcg	800% (based on adequate intake (AI*) for women)
Sodium	10 mg	—

Notes for accuracy:

• Vitamin B6 RDA: 1.3 mg/day for most adults (ages 19–50).
  
• Vitamin B12 RDA: 2.4 mcg/day.
  
• Chromium: Has an adequate intake (AI) rather than an RDA (25 mcg/day for women, 35 mcg/day for men), which is why the percentage can vary depending on which reference you use.
  

Does Lemme Burn work for weight loss?

The ingredients in Lemme Burn gummies have some early, ingredient-level evidence suggesting possible modest effects. That said, the current research is not strong enough to support bold “fat-burning” expectations. 

Here’s where some of the claims don’t match the hype:

• Morosil – The strongest evidence in the formula is for Morosil, which has been studied at the same 400 mg dose used in Lemme Burn. In those trials, participants lost more weight than with a placebo—but they were also following diet and lifestyle guidance, making it hard to separate the supplement’s effect from habit changes.
• Black ginger – Black ginger has also been studied for reductions in body and abdominal fat, but at a higher dose (100 mg) than the 30 mg included in Lemme Burn. 
• B6, B12, and chromium – The added B vitamins and chromium support normal metabolic function, but supporting metabolism isn’t the same as accelerating fat loss. 

It’s also important to zoom out: Lemme Burn is a multi-ingredient gummy, not a single isolated compound under tightly controlled research conditions. 

“Real-world results depend on everything else happening in someone’s life—eating patterns, physical activity, sleep, stress, medications, and metabolic health,” explains Dr. Mann. “Even weight loss medications like GLP-1s need to be used in combination with healthy habits and lifestyle changes to be effective.”

At best, Lemme Burn might provide a small nudge for some people—especially when paired with habits that create the conditions for fat loss. On its own, it’s unlikely to override calorie balance or dramatically change body composition. 

Are Lemme Burn gummies safe?

If you’re healthy and not on medications, the amounts in Lemme Burn are unlikely to be dangerous. If you have a medical condition, especially related to blood sugar, thyroid, kidneys, or liver function, it’s important to talk to a healthcare professional before taking it.

“Even if an ingredient is considered ‘well-tolerated’ in studies, supplements aren’t automatically right for everyone. If you’re pregnant, breastfeeding, managing a medical condition, or taking medications, talk with a clinician before starting a new supplement,” says Dr. Mann.

One potential concern is chromium. The supplement contains 200 mcg, which is about 800% of the adequate intake (AI) for adult women (25 mcg/day) and about 570% for adult men (35 mcg/day)—much higher than what most people typically get from food.

While chromium is an essential trace mineral, large supplemental doses aren’t usually necessary for people who aren’t deficient. Chromium can also interact with certain medications, including some used for diabetes and thyroid conditions, so people with these conditions should talk with their healthcare provider before starting a supplement. 

Frequently asked questions about Lemme Burn gummies 

Does Lemme Burn work for weight loss?

Lemme Burn contains ingredients that have shown modest weight-related effects in small studies, but the overall evidence is still limited. It may provide a small boost when combined with diet and exercise, but it’s unlikely to cause dramatic or rapid fat loss on its own.

How quickly does Lemme Burn work?

Most ingredient studies cited by the brand followed participants for about 12 weeks, with some tracking up to six months. That means any potential changes would likely be gradual—not something you’d notice in a few days or weeks.

How many Lemme Burn gummies should I take?

The product label typically recommends two gummies per day. It’s best to follow the label instructions and avoid taking more than directed. And, if you have any health conditions or take prescription medications, it’s best to check with your doctor if it’s safe for you. 

What does Lemme Burn do?

Lemme Burn is marketed as a metabolism-support supplement that claims to help with fat burning, energy production, and body composition—especially when paired with diet and exercise. But like many supplements in this category, those benefits largely come from marketing language rather than strong clinical evidence. While some of the ingredients have been studied individually, that doesn’t necessarily mean the gummies themselves will meaningfully boost metabolism or lead to weight loss.

The bottom line: Lemme Burn isn’t a shortcut for weight loss

Lemme Burn is built around real metabolic concepts and ingredients that have some early research behind them. But the overall evidence suggests that, at best, it may offer a modest assist—not a dramatic fat-burning shortcut. Even the product’s own language emphasizes results “in combination with diet and exercise,” which is an important detail. The supplement is positioned as support, not a replacement for healthy habits.

And that’s the part worth focusing on.

Real, lasting weight loss comes from small, realistic shifts in your daily eating and lifestyle patterns—changes you can actually maintain. That usually looks like building meals around protein and fiber to stay fuller longer, strength training to preserve lean muscle, moving consistently throughout the week, improving sleep, and managing stress so your hunger cues stay more regulated. Those habits influence the same metabolic pathways supplements talk about—often in more powerful and sustainable ways.

If you’re looking for more healthy habit strategies, download Noom on iOS & Android. We focus on building awareness. When you understand how different foods affect your hunger, satisfaction, and habits, you can make choices that feel balanced—and build changes that last.