There’s no published evidence verifying the safety of Plexus supplements. Although you might see weight loss while following a Plexus plan, much of that initial loss is likely water weight and may return when the program ends.
Plexus is a supplement brand best known for its “pink drinks,” like Plexus Slim Hunger Control and Plexus Slim Microbiome Activating. These are powdered mixes marketed to curb appetite and support weight loss.
Over recent years, Plexus broadened its catalog to include products such as Plexus Block, claimed to influence carbohydrate metabolism, and Plexus MetaBurn, promoted as a metabolism-boosting, fat-burning formula.
Despite their wide reach, you may wonder whether Plexus weight-loss supplements are effective or safe to use.
This piece examines the evidence — or lack thereof — behind the most popular Plexus weight-loss products and their safety profile.
What is Plexus?
Plexus is a supplement company offering a range of products aimed at supporting general health and wellness.
The brand gained recognition for its “pink drink.” In recent years it has introduced products targeting gut health, weight management, and skin care.
More recently, Plexus launched Plexus Pivotal, a 90-day program that provides weekly suggestions, recipes, workouts, and motivational content intended to help users adhere to the products.
Despite the expanded lineup and programs, Plexus remains primarily associated with weight-loss regimens and assertive health claims.
Company reputation
Plexus uses a multilevel marketing (MLM) model, meaning that much of the marketing and sales are carried out by independent brand ambassadors.
Like many MLMs, the company highlights lucrative earnings for ambassadors. Yet Plexus’s own disclosure indicates the average ambassador earned only $544 in 2020 (1).
Importantly, ambassadors are customers rather than licensed healthcare providers. That can be risky because ambassadors may recommend products without formal training in nutrition or supplements.
The company has also been criticized for making strong claims about product benefits without clinical trials or independent verification.
In 2020, Plexus received a warning letter from the Federal Trade Commission (FTC) about social media posts suggesting Plexus products could prevent or treat COVID-19 (2).
Those bold assertions attract customers and potential ambassadors, but the evidence supporting ambassador earnings and product effectiveness is limited.
Who is Plexus for?
Plexus markets itself to people hoping to lose weight or improve overall health and wellbeing.
The company’s Plexus Pivotal program promises weekly content to help users form healthier habits.
This program may benefit someone who is self-directed and comfortable managing weight loss independently or who already has external support.
However, research shows that practical strategies like keeping a food log, having social support, and setting measurable goals are among the most effective weight-loss methods (3), so newcomers might need more structured help than the program provides.
Long-term success also depends on whether a diet and lifestyle are sustainable. Studies indicate that adherence, rather than the specific diet, predicts long-term success (4).
Prospective users should also consider cost. Plexus packages are relatively expensive, and the company offers limited guidance on how long to continue products, which could make this approach difficult to maintain.
Finally, there’s no targeted research confirming the safety of Plexus supplements, and they lack third-party testing. Certain groups — including children and pregnant or breastfeeding people — should avoid them.
How much does Plexus cost?
Pricing depends on which combo you choose and whether you enroll as a VIP customer.
Plexus weight-management combos supply roughly 30 days of product and differ in included items.
VIP members pay a $9.95 enrollment fee plus a $19.95 annual fee for up to 25% off products.
Customers can also opt into a monthly subscription that offers a 10% discount after the first two consecutive subscription orders.
How Plexus weight-management regimens work
Plexus offers three weight-management bundles: Weight Loss Basics, Weight Loss Plus, and Weight Loss Advanced.
Products commonly found across these combos include:
- Plexus Lean. A protein meal-replacement powder available in chocolate and vanilla, and in whey or vegan formulations. Plexus recommends replacing two meals per day with Lean for weight loss.
- Slim Hunger Control and Microbiome Activating. Flavored powdered mixes to be combined with water and taken 30–60 minutes before meals, twice daily. Slim Hunger Control is promoted to reduce appetite, while Microbiome Activating is positioned to support gut health.
- MetaBurn. Capsules marketed to enhance fat burning and energy. The suggested use is one capsule twice daily.
- Active or Hydrate. Drink mixes included in the Plus and Advanced kits, intended to increase either energy (Active) or hydration (Hydrate) and consumed anytime.
- BioCleanse. Capsules in the Advanced set that claim to reduce gas, bloating, and stomach discomfort; directions advise taking 2 capsules with 8 ounces (236.6 mL) of water twice daily between meals.
- ProBio 5. Capsules in the Advanced combo, recommended as one capsule nightly before bed to support gut health and digestion.
Although Plexus provides usage instructions and suggests reducing meal replacements after reaching goals, it does not clearly state how long users should remain on the products.
Product ingredients and nutrition
Below is a closer look at ingredients and nutrition for key Plexus weight-management products: Plexus Lean, Slim Hunger Control and Microbiome Activating, MetaBurn, and Block.
Plexus Lean
Plexus states Lean delivers protein plus prebiotic fiber, which the company says helps increase feelings of fullness and reduce overall intake.
The product is intended as a meal replacement: 2 meals per day for weight loss or 1 meal per day for maintenance.
Nutritional facts for 2 scoops (40 grams) of Chocolate Lean Whey are listed by the company as (5):
- Calories: 140
- Fat: 3 grams
- Saturated fat: 1.5 grams
- Carbohydrates: 12 grams
- Fiber: 5 grams
- Sugar: 3 grams (includes 1 gram added sugar)
- Protein: 21 grams
Vanilla Lean Whey differs slightly (6):
- Calories: 140
- Fat: 3.5 grams
- Saturated fat: 1 gram
- Carbohydrates: 11 grams
- Fiber: 5 grams
- Total sugars: 3 grams (includes 1 gram added sugar)
- Protein: 21 grams
Two scoops (48 grams) of Chocolate Lean Vegan prepared with water have the following nutrition (7):
- Calories: 140
- Fat: 3.5 grams
- Saturated fat: .5 grams
- Carbohydrates: 11 grams
- Fiber: 7 grams
- Sugar: 2 grams
- Protein: 21 grams
The Vanilla Lean Vegan is nearly the same (8):
- Calories: 140
- Fat: 3 grams
- Saturated fat: .5 grams
- Carbohydrates: 12 grams
- Fiber: 7 grams
- Sugar: 1 gram
- Protein: 21 grams
Below are the principal ingredients in the Lean shakes.
rBGH-free whey protein
The whey Lean formulas blend whey concentrate and whey isolate to support lean muscle development.
Evidence supports whey or other complete protein sources for preserving muscle mass and improving body composition (9).
Vegan protein blend
The vegan Lean uses pea and almond proteins rather than cow-derived whey.
Research indicates pea protein can support lean muscle mass and in some studies performs similarly to whey for body-composition improvements (10), and pea and whey powders have shown comparable effects on muscle thickness and strength (11).
Prebiotic fiber
Lean contains prebiotic fiber from polydextrose, which Plexus says supports growth of beneficial gut bacteria.
Polydextrose has been associated with encouraging healthy gut bacteria and possibly improving cognitive function in some studies (12, 13).
Digestive enzymes
Digestive enzymes in Lean derive from Aspergillus oryzae and Aspergillus niger — fungi used industrially to produce enzymes (14).
Plexus asserts these enzymes improve protein digestion in Lean.
Some people, for example those with lactose intolerance or cystic fibrosis, may benefit from digestive enzymes (15), but it’s unclear whether people without specific digestive issues gain the same advantage.
Other ingredients
Lean also contains 21 vitamins and minerals.
Flaxseed provides omega-3 fatty acids, which may reduce risks for some conditions like heart disease and certain cancers (16).
Both whey and vegan Lean products are sweetened with coconut sugar and stevia leaf extract.
Plexus Slim Hunger Control and Microbiome Activating
All weight-loss combos include either Plexus Slim Hunger Control or Microbiome Activating powder.
The primary distinction is that Hunger Control contains polydextrose (a soluble fiber), while Microbiome Activating contains xylooligosaccharides (XOS) as prebiotics.
Nutritional facts for 1 packet of Plexus Slim Hunger Control (17):
- Calories: 15
- Fat: 0 grams
- Saturated fat: 0 grams
- Carbohydrates: 8 grams
- Fiber: 6 grams
- Sugar: 0 grams
- Protein: 0 grams
Nutritional facts for 1 packet of Plexus Microbiome Activating (18):
- Calories: 5
- Fat: 0 grams
- Saturated fat: 0 grams
- Carbohydrates: 2 grams
- Fiber: 0 grams
- Sugar: 0 grams
- Protein: 0 grams
Slim Hunger Control (Polydextrose)
Plexus says Slim Hunger Control promotes fullness because it contains polydextrose.
Polydextrose is a soluble fiber often used as a bulking agent and thickener in processed foods (19).
Some studies suggest polydextrose may blunt post-meal blood sugar spikes, increase satiety to reduce calorie intake, and improve bowel function. However, the available review includes both animal and human research and more human trials are necessary (19).
Slim Microbiome Activating (XOS)
Plexus characterizes XOS as a clinically shown prebiotic that feeds beneficial gut microbes.
Prebiotics generally support gut microbiota health (20), and regular XOS consumption in certain food forms, like rice porridge, has been linked with improved microbiota balance (21).
Green coffee bean extract
Plexus claims green coffee bean extract supports glucose metabolism by reducing sugar absorption.
Some studies suggest green coffee bean extract may lower fasting glucose, insulin, and triglycerides (22), and a review indicated it might aid weight loss, particularly in people with BMI over 25 (23).
Still, the evidence is inconclusive and there’s no solid proof that green coffee bean extract reduces intestinal sugar absorption as the company claims.
Chromium polynicotinate
Chromium is an essential mineral involved in carbohydrate, fat, and protein metabolism and is frequently included in weight-loss products.
A review linked chromium supplementation to modest weight loss and reduced body fat in people with overweight or obesity, but larger, long-term trials are needed (24).
Plexus MetaBurn
MetaBurn is a capsule marketed to enhance fat burning and target abdominal fat.
Key ingredients include:
Grains of paradise (Aframomum melegueta)
Plexus says grains of paradise — from the West African plant Aframomum melegueta — may boost metabolic rate.
A small study found daily intake of grains of paradise increased thermogenesis, raised energy expenditure, and reduced body fat in healthy young men (25), and other research suggests potential antioxidant and anti-inflammatory effects (26).
Although encouraging, larger human trials are necessary to confirm benefits.
L-theanine and caffeine
Plexus includes L-theanine and caffeine in MetaBurn to support mood and mental sharpness.
Limited evidence suggests L-theanine may reduce stress and anxiety, though more long-term research is needed (27), and some studies indicate the L-theanine/caffeine combo can enhance focus and attention (28, 29).
Rhodiola (Rhodiola rosea)
Plexus promotes rhodiola for mood support.
Rhodiola is used traditionally as an adaptogen that may help with stress response (30, 31), and some studies point to possible anti-aging, anti-cancer, and anti-stress activities (30, 32).
Still, evidence that rhodiola supplements improve mood remains limited (33).
Plexus Block
Plexus Block is presented as a supplement that can lower the glycemic impact of foods and limit carbohydrate absorption.
Plexus suggests taking two capsules daily, ideally before the meal highest in carbohydrates.
Brown seaweed blend and white kidney bean extract
Plexus promotes its brown seaweed blend and white kidney bean extract as ingredients that lower the glycemic response to foods and reduce post-meal blood sugar spikes.
Some lab studies suggest brown seaweed might help prevent or manage metabolic syndrome and aid blood-sugar control, but human trials are limited and show mixed results (34, 35).
White kidney bean extract contains an alpha-amylase inhibitor that can reduce carbohydrate digestion, but whether it meaningfully impacts carbohydrate absorption and weight loss is uncertain (36, 37).
Note this is a proprietary blend, so exact ingredient quantities are not disclosed.
Chromax Chromium Picolinate
Chromium picolinate, also found in Slim Hunger Control and Microbiome Activating, is commonly used in weight-loss supplements for its role in metabolism.
While some evidence suggests chromium can aid weight loss, more rigorous studies are required (24).
Is Plexus effective for weight loss?
Plexus could promote weight loss mainly by encouraging a lower calorie intake, but the plan may provide too few calories for many adults.
Most adults need at least about 1,500 calories per day, and prolonged intake below this level can negatively affect metabolic health (38, 39).
Initial weight loss on such protocols is often fluid loss, and weight tends to return after the diet stops.
Plexus suggests replacing two meals daily with a Plexus Lean shake; when mixed with nonfat milk, one serving is roughly 230 calories depending on flavor.
Research indicates meal-replacement diets can be effective for weight loss, so replacing meals with Plexus Lean shakes could lead to weight loss (40).
However, there is no direct evidence proving Plexus’s products themselves are effective for sustained weight loss.
Are Plexus products safe?
Similarly, there’s no specific research confirming the safety of Plexus supplements.
Plexus products are not third-party tested for purity or label accuracy.
Some users report side effects such as bloating, gas, nausea, abdominal pain, and constipation.
There are also reports of more serious adverse events, including a case of secondary immune thrombocytopenic purpura (ITP) after Plexus Slim use (41), but a direct causal link has not been definitively established.
Given the lack of safety data, Plexus supplements are not recommended for children or pregnant or breastfeeding people.
Always consult a healthcare professional before starting any new supplement regimen.
When to see a doctor
If you’re struggling to lose weight, consider consulting a healthcare provider such as your primary care physician or a registered dietitian.
Because Plexus lacks research-based support for weight loss, working with a clinician can help you set realistic goals and develop sustainable habits tailored to your needs and dietary limits.
If you experience side effects while using Plexus products — for example, gas, nausea, or other gastrointestinal symptoms — stop using the product and seek medical advice.
Frequently asked questions
Why is Plexus not FDA-approved?
The FDA treats supplements differently from foods and drugs. Unlike drugs and certain foods, supplements are not required to be proven safe by the FDA before sale.
The FDA lacks authority to preapprove dietary supplements for safety prior to their availability to consumers; this applies to all supplements, not just Plexus (42).
What is the pink drink?
The Plexus “pink drink” is Plexus Slim Hunger Control. It’s a powdered supplement meant to be mixed with water and taken 30–60 minutes before a meal to reduce appetite.
The powder’s primary ingredient is polydextrose, a soluble fiber. Animal and preliminary human studies suggest polydextrose may increase satiety and reduce intake, but more research is needed (43).
Is Plexus safe to use for weight loss?
It’s uncertain whether Plexus products are safe for weight loss because they have not undergone extensive testing or independent certification.
There are anecdotal reports of adverse effects and some reports of serious complications associated with the products (44).
The bottom line
Plexus is a supplement company best known for products marketed for weight loss.
Because of limited research and lack of third-party testing, it remains unclear whether Plexus supplements are safe or effective.
The company’s recommended weight-loss routine is restrictive and does not necessarily teach the behavioral skills needed for long-term, healthy habit change.
At a starting cost around $150 per month for some combos, Plexus programs can be expensive.
For these reasons, more realistic, evidence-based options — such as meal-planning apps, healthier meal-delivery services, or working with a registered dietitian — are generally preferable.
Editor’s picks of alternative weight-loss plans and tools
If Plexus isn’t right for you, there are more sustainable alternatives worth considering. Our top recommendations include:
- WW. Formerly Weight Watchers, WW offers flexible plans to help you find an approach that fits your lifestyle.
- Prepared meal delivery services. These deliver fully prepared, portion-controlled meals to your door, making nutritious eating more convenient and accessible.
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