Last verified: 5 days ago
Chia Seed
Also known as: Salvia hispanica, Salvia hispanica L., chia
Evidence under review. — Not yet rated
Whole food seed with modest evidence for lowering triglycerides, blood pressure, and inflammation markers.
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What it does
Chia seeds are small edible seeds from the plant Salvia hispanica, rich in omega-3 fatty acids (ALA), dietary fiber, and antioxidants. Clinical trials show that eating 25–40 g per day for 8–12...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
25-40 g daily based on study doses
What the Science Says
Chia seeds are small edible seeds from the plant Salvia hispanica, rich in omega-3 fatty acids (ALA), dietary fiber, and antioxidants. Clinical trials show that eating 25–40 g per day for 8–12 weeks can meaningfully reduce triglycerides, lower blood pressure (especially diastolic and systolic), and modestly reduce the inflammation marker CRP. Effects on triglycerides appear comparable to fish oil supplements in people with elevated levels.
What It Doesn't Do
Won't boost athletic performance or endurance. No evidence it helps with weight loss on its own. Doesn't reliably reduce body fat or body composition in overweight adults. Doesn't significantly lower IL-6 or TNF-alpha inflammation markers. Whole seeds may not raise omega-3 blood levels — milled seeds work better for that.
Evidence-Based Benefits
Lowers blood triglycerides in people with high levels, comparable to fish oil supplements.
Moderate EvidenceEffective at: 30 g/day
Supporting studies (click to view on PubMed):
Reduces systolic and diastolic blood pressure in adults with type 2 diabetes or hypertriglyceridemia.
Moderate EvidenceEffective at: 30-40 g/day
Supporting studies (click to view on PubMed):
Significantly lowers CRP, a key blood marker of inflammation, in clinical trials.
Moderate EvidenceEffective at: 25-40 g/day
Supporting studies (click to view on PubMed):
Milled chia seeds raise blood ALA and EPA levels in overweight adults.
Moderate EvidenceEffective at: 25 g/day (milled form)
Supporting studies (click to view on PubMed):
Absorption & Bioavailability
Moderate — milled/ground chia raises blood ALA and EPA levels significantly better than whole seeds. Whole seeds may pass through largely intact, limiting nutrient absorption.
Red Flags to Watch For
- Whole chia seeds may not deliver meaningful omega-3 benefits — look for ground or milled forms for fatty acid absorption
- Most studies are small (under 70 participants) and short-term (8–12 weeks), so long-term effects are unknown
- Chia seeds can absorb water and swell significantly — dry consumption without adequate water poses a choking or esophageal blockage risk
- Evidence for benefits in healthy, non-diseased adults is weak — most positive results come from people with hypertriglyceridemia, type 2 diabetes, or hypertension
Products Containing Chia Seed
See how Chia Seed is used in these analyzed products:
Frequently Asked Questions
What does Chia Seed do?
Whole food seed with modest evidence for lowering triglycerides, blood pressure, and inflammation markers.
What is the effective dose of Chia Seed?
25-40 g daily based on study doses
Is Chia Seed safe?
Whole chia seeds may not deliver meaningful omega-3 benefits — look for ground or milled forms for fatty acid absorption
What doesn't Chia Seed do?
Won't boost athletic performance or endurance.
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25