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CLA (Conjugated Linoleic Acid)

Weight Management

Also known as: Conjugated linoleic acid, Tonalin

B
Grade B
💊 3-6g daily🎯 3 primary uses🔗 2 synergies⚠️ Review warnings

Overview

Fatty acid with modest effects on body composition. Reduces body fat while preserving muscle.

Primary Uses
Body compositionFat lossMuscle preservation

Frequently Asked About CLA (Conjugated Linoleic Acid)

How much CLA (Conjugated Linoleic Acid) should I take?
The typical effective range is 3-6g daily. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take CLA (Conjugated Linoleic Acid)?
With meals. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take CLA (Conjugated Linoleic Acid) with food?
Yes.
Does CLA (Conjugated Linoleic Acid) interact with medications?
Yes — known interactions include Diabetes medications. If you take any prescription medication, talk to your doctor or pharmacist before starting CLA (Conjugated Linoleic Acid).
What does CLA (Conjugated Linoleic Acid) pair well with?
CLA (Conjugated Linoleic Acid) stacks well with Protein and Exercise — these combinations either improve absorption or work synergistically toward common goals.
Who should not take CLA (Conjugated Linoleic Acid)?
CLA (Conjugated Linoleic Acid) should be avoided or used with caution by people with Diabetes (monitor) and Metabolic syndrome. Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of CLA (Conjugated Linoleic Acid)?
Most people tolerate CLA (Conjugated Linoleic Acid) well. The most commonly reported side effects are GI upset and Nausea. Side effects are usually dose-dependent — lowering the dose often resolves them.

Dosage

Typical range
3-6g daily
Timing
With meals
With food
Yes
Duration

12+ weeks for effects

Special Populations

Body composition goals

Research & Studies

Search the literature now

We haven’t curated landmark studies for CLA (Conjugated Linoleic Acid)yet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.

Browse all curated studies →

Mechanism of Action

  • Affects fat cell metabolism
  • May reduce fat storage
  • Preserves lean mass

Evidence Quality

Evidence Grade B

Modest evidence for body composition

Safety & Contraindications

Serious Warnings
  • May affect insulin sensitivity
  • Liver fat accumulation
Contraindications
  • Diabetes (monitor)
  • Metabolic syndrome
Common Side Effects
  • GI upset
  • Nausea
Pregnancy & Breastfeeding

Avoid

Liver & Kidney Notes

Some liver fat accumulation concerns

Interactions

💊 Medications
  • Diabetes medications
🧪 Supplements
  • Fish oil
🍽️ Food & Alcohol
  • With meals

Stacking & Synergies

Pairs Well With
ProteinExercise
Avoid Combining With
Nothing specific
Best Goal Synergies
Body recomposition

Buying Guide

What to Look For
  • Tonalin or Clarinol brand
Standardization Markers
CLA isomer content (c9, t11 and t10, c12)
Adulteration risk
Moderate
Practical Notes
  • Effects are modest
  • Concerns about metabolic effects
Tags
fatty acidbody compositionfat lossmuscle

More in Weight Management

Last reviewed: June 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, June). CLA (Conjugated Linoleic Acid) — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/cla

Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.