Research
Macro partitioning
The primary source of dietary fiber shifts from whole grains and legumes in low-fat diets to non-starchy vegetables and plant-based fats (nuts, seeds, avocados) in low-carbohydrate diets.
To maximize fiber on a low-fat diet, focus on whole grains, legumes, and fruits. To maximize fiber on a low-carb diet, focus on non-starchy vegetables, nuts, seeds, and avocados. Both diets can provide significant fiber, but from different food groups.
GoodQualifiesHIGH confidence
In both diet groups at 12 months, the highest amount of dietary fiber came from non-starchy vegetables... The other primary sources of fiber at 12 months for the HLF group were from whole grains... and fruits... and, for the HLC group, were from plant protein and fat sources, such as nuts and seeds, their butters, and avocados.
Why this rating
RCT design with detailed food group analysis.
Source
Changes in Quantity and Sources of Dietary Fiber from Adopting Healthy Low-Fat vs. Healthy Low-Carb Weight Loss Diets: Secondary Analysis of DIETFITS Weight Loss Diet Study
Lisa Offringa et al. · Nutrients · 2021
rct · n=609Cited 12×
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