Insulin

Nutrients connected to Insulin

A link means the body needs the nutrient for this, or that low intake is linked to it. It does not mean extra supplements help if your intake is already adequate; each link shows how strong the evidence is.

• BarberryPreliminary or mixed

  Insulin levels were lower in the 2020 meta-analysis; the 2025 analysis also found lower insulin in type 2 diabetes.

• BerberinePreliminary or mixed

  Fasting insulin and insulin-resistance scores fell in a 2021 meta-analysis of type 2 diabetes trials.

• Strawberries, Raspberries & BlackberriesPreliminary or mixed

  Peak insulin after a test meal was lower with the largest amount of frozen red raspberries in adults with prediabetes; strawberries improved insulin resistance markers over 12 weeks in another small trial.

• MangoPreliminary or mixed

  Lower insulin and HOMA-IR with two cups of mango a day for 4 weeks in one trial of 48 adults.

• ChromiumPreliminary or mixed

  One review found lower fasting insulin and insulin resistance (HOMA-IR) with chromium in type 2 diabetes. Other evidence is limited.

• TaurinePreliminary or mixed

  A 2026 meta-analysis reported lower fasting insulin with taurine supplements. A lab measure, not proof of better long-term outcomes.

• Akkermansia, Faecalibacterium and next-generation probioticsPreliminary or mixed

  Fasting insulin fell about 34% with pasteurised A. muciniphila in a 2019 pilot; the 2026 trial primary insulin-sensitivity result did not differ from placebo.

• SchisandraPreliminary or mixed

  Insulin markers fell more than placebo in one trial of a schisandra-soybean mixture; not schisandra alone.

• Maqui berryPreliminary or mixed

  Acute studies reported a changed insulin response; the direction and size are not given in the abstract we read.

• FlaxseedPreliminary or mixed

  The same 7-trial meta-analysis found lower insulin levels and insulin resistance; evidence is limited.

• Almond mushroom (Agaricus subrufescens)Preliminary or mixed

  The diabetes trial used an insulin-resistance score (HOMA-IR) as its main measure; it was lower with the extract in one small trial.

• Mulberry leafPreliminary or mixed

  After-meal insulin curves were lower in a pooled analysis; a lower insulin response is not proof of a health benefit.

• CuminPreliminary or mixed

  Two 2021 reviews found no significant change in insulin.

• Coriander seedPreliminary or mixed

  Insulin and insulin resistance (HOMA-IR) fell more with seed powder in one small trial.

• Dill seedPreliminary or mixed

  Lower serum insulin in pooled supplement trials.

• SumacPreliminary or mixed

  The 2024 pooling reported lower insulin; the 2021 pooling found no significant change.

• YaconPreliminary or mixed

  Fasting insulin was lower in a 120-day trial and a 2025 review; a pooled analysis of 7 trials found no significant overall change.

• AvocadoPreliminary or mixed

  The same crossover trial found lower after-meal insulin responses.

• Nopales (Prickly Pear Pads)Preliminary or mixed

  Lower insulin response after a meal with nopales in one small study.

• KimchiPreliminary or mixed

  Insulin resistance fell with fermented kimchi in 21 adults with prediabetes.

• PistachiosPreliminary or mixed

  Fasting insulin was lower in two meta-analyses; the insulin resistance score (HOMA-IR) did not change in one.

• FlaxseedPreliminary or mixed

  Lower insulin in the same meta-analysis.

• Red Raspberry Leaf TeaPreliminary or mixed

  Insulin after sucrose was lower at 15, 30 and 60 minutes with the tea in the same small study.

• RyePreliminary or mixed

  Lower insulin response after meals with rye than wheat bread in short studies.

• QuinoaPreliminary or mixed

  Serum insulin was lower in the pooled cardiovascular analysis.

• LentilsPreliminary or mixed

  Pulses alone lowered fasting insulin in pooled trials. In an 8-week lentil trial insulin resistance (HOMA-IR) fell with lentils compared with a control.

• Chickpeas (Garbanzo Beans)Preliminary or mixed

  Pulses alone lowered fasting insulin in pooled trials. Insulin response was lower in some chickpea trials but not consistently (Nam 2023).

• Split PeasPreliminary or mixed

  Pulses alone lowered fasting insulin in pooled trials. Bread with split pea flour did not significantly change insulin in 24 healthy adults.

• Extra Virgin Olive OilPreliminary or mixed

  Lower insulin in pooled trials.

• Grapeseed OilPreliminary or mixed

  HOMA-IR fell in the grapeseed oil group in the same trial.

• MCT OilPreliminary or mixed

  HOMA-IR fell with MCT diets in a pooled analysis.

• Alcohol-Free Beer & WinePreliminary or mixed

  Insulin and C-peptide rose with wheat non-alcoholic beer in the same study.

• CarrageenanPreliminary or mixed

  In overweight participants, insulin sensitivity was lower on carrageenan in one small trial.

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