CLA (Conjugated Linoleic Acid)
Also known as: Conjugated linoleic acid, Tonalin
Overview
Fatty acid with modest effects on body composition. Reduces body fat while preserving muscle.
Frequently Asked About CLA (Conjugated Linoleic Acid)
How much CLA (Conjugated Linoleic Acid) should I take?
When is the best time to take CLA (Conjugated Linoleic Acid)?
Should I take CLA (Conjugated Linoleic Acid) with food?
Does CLA (Conjugated Linoleic Acid) interact with medications?
What does CLA (Conjugated Linoleic Acid) pair well with?
Who should not take CLA (Conjugated Linoleic Acid)?
What are the side effects of CLA (Conjugated Linoleic Acid)?
Dosage
12+ weeks for effects
Body composition goals
Research & Studies
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.
Mechanism of Action
- • Affects fat cell metabolism
- • May reduce fat storage
- • Preserves lean mass
Evidence Quality
Modest evidence for body composition
Safety & Contraindications
- • May affect insulin sensitivity
- • Liver fat accumulation
- • Diabetes (monitor)
- • Metabolic syndrome
- • GI upset
- • Nausea
Avoid
Some liver fat accumulation concerns
Interactions
- • Diabetes medications
- • Fish oil
- • With meals
Stacking & Synergies
Buying Guide
- • Tonalin or Clarinol brand
- • Effects are modest
- • Concerns about metabolic effects
More in Weight Management
Other ingredients in the Weight Management category.
Browse all Weight Management ingredients →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.