The Claim

In adults with insulin resistance, an 8-week diet low in energy density and high in beans reduces insulin response during a mixed meal by approximately 2136 mg/[dL·min] and improves HOMA-IR by 1.4 units compared to a similar diet high in potatoes.

Source: Low-Energy Dense Potato- and Bean-Based Diets Reduce Body Weight and Insulin Resistance: A Randomized, Feeding, Equivalence Trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
78score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

In adults with insulin resistance, eating a diet low in energy density and high in beans for 8 weeks lowers insulin response after a meal by 2136 mg/[dL·min] and improves HOMA-IR by 1.4 units compared to eating a similar diet high in potatoes.

See the scientific wording

In adults with insulin resistance, an 8-week diet low in energy density and high in beans reduces insulin response during a mixed meal by approximately 2136 mg/[dL·min] and improves HOMA-IR by 1.4 units, with no significant difference in outcomes compared to a similar diet high in potatoes.

Why this might work

Eating foods like beans and cooled potatoes that are low in calories but high in fiber and water fills the stomach and reaches the gut without being fully digested. This triggers the gut to release hormones that improve how the body uses insulin and reduces the liver's sugar production. At the same time, eating these foods leads to eating fewer calories overall, which causes the body to burn stored fat. Less fat around the organs makes the body more responsive to insulin, so less insulin is needed to control blood sugar after meals.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Low-Energy Dense Potato- and Bean-Based Diets Reduce Body Weight and Insulin Resistance: A Randomized, Feeding, Equivalence Trial

    In people with insulin resistance, eating a diet full of beans or potatoes (but low in calories) both helped their bodies use insulin better after 8 weeks. The bean diet also lowered the amount of insulin their bodies released after meals, which is exactly what the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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