Brain dynamics and BMI linked to dieting success, study finds

By Hugo Francisco de SouzaApr 23 2024Reviewed by Susha Cheriyedath, M.Sc. In a recent study published in the journal PNAS, researchers used a gradient approach to examine how brain state alterations during routine and regulated dietary decision-making processes influence the success of diet modification attempts. They further investigate the role of body mass indices and the extent of brain activity modifications in this success.

Encouragingly, the global human population seems to have woken up to these pressing issues, promoting the rising popularity of healthy, primarily vegetarian diets and fitness routines. In America alone, more than 40% of the population reportedly actively engages in weight loss attempts. Unfortunately, the outcomes of these dietary and fitness interventions remain surprisingly heterogeneous – some individuals display remarkable weight loss, while others' attempts are met with failure.

The study sample cohort comprised data from 137 volunteers with BMI < 35 enrolled in three previous studies on dietary choice. Exclusions of individuals with missing BMI data and outliers resulted in a final dataset of 123 participants between the ages of 20 and 33. Data collection included participants' sociodemographic, anthropometric, and medical records.

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