WeightCited is an evidence-based platform that evaluates supplements and natural compounds for weight management. We analyze peer-reviewed clinical research to help consumers understand which ingredients have scientific support for various weight-related goals.

How does WeightCited evaluate supplements for weight management?

We review randomized controlled trials, systematic reviews, and meta-analyses published in peer-reviewed journals. Each ingredient is assessed for its level of evidence, typical dosages studied, and reported outcomes related to weight management.

Are the supplements on WeightCited FDA-approved for weight loss?

Dietary supplements are not FDA-approved to treat, cure, or prevent any disease, including obesity. The FDA regulates supplements under different rules than pharmaceutical drugs. WeightCited presents published research findings, not medical recommendations.

Can I use WeightCited to replace my doctor's advice?

No. WeightCited is an educational resource and should not replace professional medical advice. Always consult a qualified healthcare provider before starting any supplement regimen, especially if you have underlying health conditions or take medications.

Is WeightCited free to use?

Yes, WeightCited provides free access to evidence-based information about weight management supplements. Our goal is to make peer-reviewed research accessible to consumers seeking reliable information about dietary supplements.

Evidence-Based Supplement Reviews

Every weight claim cited.

We read the weight management studies so you don't have to.

Browse Ingredients

Evidence-based supplement research you can trust. We analyze peer-reviewed clinical studies from PubMed and grade every supplement ingredient on a transparent A–D scale. No sponsored rankings, no manufacturer influence — just science.

Featured Ingredients

Ashwagandha

hormonal

Withanolide-rich adaptogen that modulates the hypothalamic-pituitary-adrenal (HPA) axis, reducing cortisol levels by 14-28% in clinical trials. Chronic cortisol elevation promotes …

3 conditions studied

Berberine

fat_metabolism

Activates AMP-activated protein kinase (AMPK), the master metabolic regulator, in muscle, liver, and adipose tissue — a mechanism shared with …

3 conditions studied

Glucomannan

fiber_satiety

Water-soluble dietary fiber that absorbs up to 50 times its weight in water, forming a viscous gel in the stomach. …

2 conditions studied

Green Tea Extract (EGCG)

thermogenic

Epigallocatechin gallate (EGCG) inhibits catechol-O-methyltransferase (COMT), prolonging norepinephrine signaling and increasing thermogenesis and fat oxidation. Also activates AMPK, which promotes …

4 conditions studied

Probiotics (Lactobacillus gasseri)

gut_health

Strain-specific probiotic that modulates the gut-brain-adipose axis. L. gasseri SBT2055 reduces dietary fat absorption by increasing fecal fat excretion (by …

2 conditions studied

Vitamin D

hormonal

Vitamin D receptors are expressed in adipose tissue, skeletal muscle, and the pancreas. Adequate vitamin D status supports insulin sensitivity, …

3 conditions studied

View all ingredients →

Top Conditions

Abdominal Fat Reduction

54% of US adults have elevated waist circumference; visceral obesity increasing even among normal-weight individuals

Waist circumference >40 in (men) / >35 in (women) Elevated waist-to-hip ratio Elevated liver enzymes +2

Appetite Control

Subjective hunger and appetite dysregulation affect the majority of individuals attempting weight loss

Persistent hunger between meals Difficulty feeling full Frequent snacking +3

Insulin Resistance

40% of US adults aged 18-44 (estimated); up to 70% in obese individuals

Difficulty losing weight Carbohydrate cravings Fatigue after meals +4

Metabolic Syndrome

34.7% of US adults (NHANES); increases with age: 50% in those >60 years

Central obesity Elevated blood pressure Elevated fasting glucose +4

Obesity

42.4% of US adults (2023 CDC data); 650 million adults globally; prevalence has tripled since 1975

Excessive body fat (BMI ≥30) Fatigue Joint pain +4

Overweight Management

30.7% of US adults; combined with obesity, 73.1% of US adults are overweight or obese

BMI 25-29.9 Mild fatigue Early insulin resistance +2

View all conditions →

Recent Evidence Updates

Iron for Post-Bariatric Nutritional Support

10 studies

Vitamin B12 for Post-Bariatric Nutritional Support

10 studies

Whey Protein for Post-Bariatric Nutritional Support

8 studies

Magnesium for Insulin Resistance

32 studies

Whey Protein for Appetite Control

10 studies

Guides & Resources

lifestyle

Managing Weight Loss Plateaus: Science and Strategies

Weight loss plateaus are among the most frustrating and misunderstood aspects of the weight management journey, yet they are a near-universal experience and a physiologically …

lifestyle

Exercise and Supplements: An Evidence-Based Approach

Regular physical activity is the single most impactful modifiable factor for long-term weight management success. Meta-analyses of weight loss maintenance studies consistently show that individuals …

safety

Weight Loss Supplement Interactions with Medications

Drug-supplement interactions represent one of the most underappreciated safety concerns in weight management. A 2016 survey published in JAMA Internal Medicine found that more than …

View all 10 guides →

Evidence Grading System

Every supplement claim on this site is graded on an A–D scale based on peer-reviewed clinical research from PubMed. Our algorithm evaluates study design (RCTs rank highest), consistency of results, sample sizes, and the overall body of evidence. No manufacturer sponsorship influences our grades.

A Strong Evidence

Multiple randomized controlled trials (RCTs) or meta-analyses with consistent positive results and large sample sizes.

B Good Evidence

At least one RCT with mostly consistent results across studies. Evidence suggests benefit but more research may be needed.

C Some Evidence

Small studies or observational data with some positive signals. Promising but insufficient for strong recommendations.

D Very Early Research

In vitro studies, case reports, or pilot studies only. Early-stage research that requires clinical validation.

Read our full methodology →

How It Works

No ads. No sponsored rankings. Just science.

Search PubMed

We search PubMed for every clinical study on supplement ingredients.

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Extract Findings

We extract the key findings — sample sizes, study types, and results.

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Grade A through F

We grade the evidence like a school report card — from A (strong) to F (negative).

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Clear Answer

You get a clear answer in seconds — does this supplement actually work?

Cited Health Network

Explore evidence-based research across multiple health domains.

HairCited

Evidence-based hair supplement reviews. Every claim backed by peer-reviewed rese

SleepCited

Evidence-based sleep supplement reviews. Every claim backed by peer-reviewed res

GutCited

Evidence-based gut health supplement reviews. Every claim about probiotics, preb

ImmuneCited

Evidence-based immune supplement reviews. Every claim about vitamin C, zinc, eld

BrainCited

Evidence-based brain and cognitive supplement reviews. Every claim about nootrop

HeartCited

Evidence-based cardiovascular supplement reviews. Every claim about omega-3, CoQ

SkinCited

Evidence-based skin health supplement reviews. Every claim about collagen, vitam

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.