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Food

Chia seeds

A seed rich in soluble fiber, ALA (plant omega-3), and protein; improves blood glucose, satiety, and the cardiometabolic profile.
Category
Scientific evidence
Moderate
Number of findings
2
Sources
Our own summaries · Cited studies
Recommended dose and how to use
25–35 g/day (2–3 tablespoons), soaked or added to meals, with enough liquid.

In practice

25–35 g/day (2–3 tablespoons), soaked or added to meals, with enough liquid.

Precautions

Very safe as a food. Because of its fiber, introduce it gradually and with water; caution in people with difficulty swallowing (it swells).

Effect by goal · level of evidence

Type 2 diabetes

improves Moderate clinical trial (A)

In overweight adults with type 2 diabetes, replacing part of the diet with Salba chia for 6 months reduced weight, C-reactive protein, and blood pressure versus control (randomized double-blind trial).

View the study (clinical trial) →

Cholesterol and lipids

reduces Low-moderate review (A)

Its soluble fiber and ALA help improve the lipid profile and postprandial glycemic response in several trials, with a modest effect on LDL and triglycerides.

View the study (review) →

In depth

⏱ 2 min read

Chia seeds (Salvia hispanica) are one of the plant sources densest in soluble fiber, alpha-linolenic acid (ALA, the plant-based omega-3), protein and minerals. On contact with liquid they form a gel that slows gastric emptying and glucose absorption, which explains much of their effects on satiety and blood glucose.

Blood glucose and weight

In trials with people who have overweight or type 2 diabetes, chia (often studied as Salba) improves postprandial glucose, promotes modest weight loss and reduces markers such as C-reactive protein and blood pressure, always in the context of a controlled diet.

Fiber, heart and digestion

The soluble fiber gel traps some of the cholesterol and bile acids, contributes to a more favorable lipid profile and improves intestinal transit. ALA provides a plant-based omega-3, although its conversion to EPA/DHA in the body is limited.

References

  1. Vuksan, V. et al. (2017). Salba-chia (Salvia hispanica L.) in the treatment of overweight and obese patients with type 2 diabetes: a double-blind randomized controlled trial. Nutr Metab Cardiovasc Dis 27(2), 138-146. doi:10.1016/j.numecd.2016.11.124

Information, not medical advice. Scientific evidence reflects the quality of the studies.

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