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Background

Knowledge on the association between the EAT-Lancet Planetary Health Diet (PHD) or the Finnish Nutrition recommendations (FNR) and anthropometric changes is scarce. Especially, the role of the overall diet quality, distinct from energy intake, on weight changes needs further examination.

Objectives

To examine the association between diet quality and weight change indicators and to develop a dietary index based on the PHD adapted for the Finnish food culture.

Methods

The study population consisted of participants of two Finnish population-based studies (n= 4,371, 56% of women, aged 30− 74 years at baseline). Dietary habits at the baseline were assessed with a validated food frequency questionnaire including 128− 130 food items. We developed a Planetary Health Diet Score (PHDS)(including 13 components) and updated the pre-existing Recommended Finnish Diet Score (uRFDS)(including …