Hsieh 2019.

Methods	RCT (4‐arm).
Participants	319 frail or pre‐frail older adults attending outpatient clinics at Miaoli General Hospital, Taiwan.
Interventions	Interventions were exercise, nutrition intervention, exercise+nutrition intervention and control.  The nutritional intervention consisted of advice based around the Taiwanese Food Guide six food groups to maintain a desirable body weight plus a food supplement of 25 g of skim milk powder and 10 g of mixed nuts.
Outcomes	Primary outcome: frailty score, handgrip strength, gait speed, physical activity. Secondary outcomes: physical performance, mental health status. Dietary compliance
Notes	Two groups relevant to include in comparison 1 ( nutrition intervention versus control).