The Claim

In adults with insulin resistance, an 8-week diet low in energy density and high in potatoes reduces body weight by approximately 5.6% and improves insulin resistance as measured by HOMA-IR, with no significant difference in outcomes compared to a similar diet high in beans.

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.

Cause and effect
1 study reviewed
In plain English

In adults with insulin resistance, an 8-week diet low in energy density and high in potatoes results in a 5.6% reduction in body weight and improved insulin resistance measured by HOMA-IR, with no difference in outcomes compared to a similar diet high in beans.

See the scientific wording

In adults with insulin resistance, an 8-week diet low in energy density and high in potatoes reduces body weight by approximately 5.6% and improves insulin resistance, as measured by HOMA-IR, with no significant difference in outcomes compared to a similar diet high in beans.

Why this might work

Eating potatoes and beans that are cooked and cooled increases a type of starch that the body cannot digest, which travels to the gut and feeds good bacteria. These bacteria produce chemicals that signal the gut to release hormones that improve how the body uses insulin. At the same time, these foods are bulky and low in calories, so people eat the same volume of food but take in fewer calories, causing the body to burn stored fat. Losing fat improves how the body responds to insulin.

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 a study where people with insulin resistance ate either lots of potatoes or lots of beans for 8 weeks, both groups lost about 5% of their body weight and their insulin resistance got better — and there was no real difference between the two diets.

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

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