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OBJECTIVES: To describe associations between dietary nutrient intake and progression of sarcopenia, the age‐related loss of muscle mass and strength.

DESIGN: Prospective cohort study of community‐dwelling older adults.

SETTING: Southern Tasmania, Australia.

PARTICIPANTS: Seven hundred forty noninstitutionalized older adults (50% female; mean age 62±7) randomly sampled from electoral rolls.

MEASUREMENTS: Dietary nutrient intake was examined at baseline and follow‐up (2.6±0.4 years later) using The Cancer Council Victoria's Food Frequency Questionnaire (FFQ). Appendicular lean mass (aLM) was assessed using dual X‐ray absorptiometry and muscle strength of the knee extensors using a dynamometer.

RESULTS: Failing to meet the recommended dietary intake for protein was associated with significantly lower aLM at baseline (−0.81 kg, 95% confidence interval (CI)=−1.54 to −0.08 …