Browse/Specialty Dietary Substance
Specialty Dietary Substance

Conjugated Linoleic Acid (CLA)

01 / OVERVIEW

What this compound does

WHAT IT DOES

Conjugated Linoleic Acid, or CLA, is a natural substance found in some foods that may help your body manage fat better. It could give you more energy and help you maintain a healthy weight by influencing how your body stores and burns fat. While some people notice benefits, results can vary from person to person.

KEY BENEFITS
May support weight management
Could enhance energy levels
May improve body composition
Potentially supports metabolic health
BEST FOR
  • • Individuals looking to manage their weight
  • • Fitness enthusiasts aiming to reduce body fat
  • • People interested in metabolic health
WHAT TO EXPECT

Users may start noticing changes in energy levels and body composition within a few weeks of consistent use. However, individual responses can vary significantly.

WHO SHOULD AVOID THIS
  • • Pregnant or breastfeeding women
  • • Individuals with diabetes or insulin sensitivity issues
  • • People with a history of hormone-sensitive conditions
MYTHS & FACTS
Myth: CLA is a miracle fat loss supplement.
Fact: While CLA may support fat loss, it is not a substitute for a healthy diet and exercise. Results vary widely among individuals.
Myth: All forms of CLA are equally effective.
Fact: Different isomers of CLA may have varying effects, and not all products contain the same active forms.
At a glance
Typical dose
3-4 g/day
Loading: 2-3 g/day × 3-5 days to assess GI tolerance
Evidence
—
Studies indexed5
How it's made

Production details below.

03 / DOSAGE

How much, when

MAINTENANCE

3-4 g/day

LOADING PROTOCOL

2-3 g/day × 3-5 days to assess GI tolerance

Take with meals containing fat for optimal absorption; divide into 2 doses if GI upset occurs

TIMING

Conjugated Linoleic Acid (CLA) — Any dose

Take with food (high-fat meal)

02 / EVIDENCE

Peer-reviewed studies

  • PMID: 22705839

    Weight Loss Effects

    A meta-analysis of 18 studies found that CLA supplementation resulted in an average weight loss of 0.9 kg over 12 weeks (95% CI: 0.5-1.3 kg).

    A
  • PMID: 15131223

    Body Fat Reduction

    In a 12-week RCT with 60 participants, CLA supplementation led to a significant reduction in body fat percentage by 1.8% compared to placebo.

    B
  • PMID: 19439573

    Metabolic Health Improvement

    A study showed that CLA improved insulin sensitivity in overweight individuals after 8 weeks of supplementation.

    B
  • PMID: 18469234

    Effects on Muscle Mass

    A 16-week trial indicated that CLA supplementation did not significantly affect lean body mass compared to placebo in resistance-trained individuals.

    B
  • Meta-analysis

    Safety and Tolerability

    A review of multiple studies concluded that CLA is generally safe for most individuals, with mild gastrointestinal side effects reported in some cases.

    A
  • PMID 38703820 · 2024Narrative Review

    How to Prevent Atopic Dermatitis (Eczema) in 2024: Theory and Evidence

    B
  • PMID 39275147 · 2024RCT

    Effect of Omega-3 Polyunsaturated Fatty Acid Supplementation on Clinical Outcome of Atopic Dermatitis in Children

    B
  • PMID 39671538 · 2025RCT

    High Omega-3, Low Omega-6 Diet With Fish Oil for Men With Prostate Cancer on Active Surveillance: The CAPFISH-3 Randomized Clinical Trial

    B
  • PMID 34201625 · 2021Observational Study

    Omega-3 Supplementation and Heart Disease: A Population-Based Diet by Gene Analysis of Clinical Trial Outcomes

    B
  • PMID 32349540 · 2021Narrative Review

    Omega-3 Polyunsaturated Fatty Acids: Versatile Roles in Blood Pressure Regulation

    B
04 / INTERACTIONS

Medicine interactions

  • Insulin· hormone

    CLA may influence insulin sensitivity, potentially affecting blood sugar levels.

    → Monitor blood sugar levels closely.

    MODERATE

  • Antidiabetic medications· various

    CLA may enhance the effects of these medications.

    → Consult with a healthcare provider before use.

    MODERATE

  • Blood thinners· anticoagulant

    CLA may have a mild effect on blood clotting.

    → Use with caution and consult a healthcare provider.

    LOW

This page is a reference summary, not a prescription. Consult a clinician before starting, stopping, or combining supplements — especially if you take medication or have a medical condition.