Dietary trajectories over 21 years and frailty in Norwegian older adults: the Tromsø Study 1994-2016.

Purpose: To investigate the association between five dietary trajectories over 21 years and frailty in Norwegian older adults.

Methods: This study used data from three surveys of the Tromsø Study. Diet was measured using food frequency questionnaires at baseline (Tromsø4, 1994-95), after 7 years (Tromsø5, 2001) and at the end of follow-up (Tromsø7, 2015-16).

Fish intake and pre-frailty in Norwegian older adults - a prospective cohort study: the Tromsø Study 1994-2016.

Background: Pre-frailty is an intermediate, potentially reversible state before the onset of frailty. Healthy dietary choices may prevent pre-frailty. Fish is included in most healthy diets, but little is known about the association between long-term habitual fish intake and pre-frailty.

Protein Intake and the Risk of Pre-Frailty and Frailty in Norwegian Older Adults. The Tromsø Study 1994-2016.

Background: Protein intake is suggested as an important dietary factor in the prevention of frailty, however, the influence of lifelong intake remains unclear.

Objectives: The present study investigated the relationship between daily protein intake and patterns of protein intake over 21 years and the risk of pre-frailty/frailty.

Design: Prospective cohort study.