Hormonal
Increasing alpha-linolenic acid (ALA) intake may increase fasting insulin levels by approximately 7%, but has little or no effect on other glucose metabolism markers.
If you are increasing your intake of alpha-linolenic acid (found in flaxseed, canola, and walnuts), be aware that it might slightly increase your fasting insulin levels. While the effect on blood sugar itself is negligible, this insulin change is worth monitoring if you have insulin resistance.
Increasing α-linolenic acid, omega-6, and total polyunsaturated fatty acids had little or no effect on glucose metabolism, except that increasing α-linolenic acid may increase fasting insulin by about 7%.
Why this rating
Based on 12 trials, with low quality evidence due to imprecision and risk of bias.
Source
Omega-3, omega-6, and total dietary polyunsaturated fat for prevention and treatment of type 2 diabetes mellitus: systematic review and meta-analysis of randomised controlled trials
Tracey Brown et al. · BMJ · 2019
DOI 10.1136/bmj.l4697
More from this paper
- Increasing long-chain omega-3 intake has little or no effect on the risk of developing type 2 diabetes or on glucose metabolism markers (HbA1c, fasting glucose, insulin, HOMA-IR).Good
- High-dose long-chain omega-3 supplementation (>4.4 g/day) may worsen glucose metabolism, including increasing the risk of diabetes diagnosis and raising HbA1c and fasting glucose.Moderate
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