Effectiveness of Protein Supplementation on Frailty Improvement, Muscle Strength and Physical Performance Among Pre-Frail Elderly People

The goal of this randomized clinical trial is to study the effectiveness of protein supplements in frailty improvement, muscle strength, physical performance, energy intake and body composition of pre-frail elderly people. in Selangor, Malaysia. The main question\[s\] it aims to answer are: Does PS intervention significantly affect in frailty improvement, muscle strength, physical performance, energy intake and body composition of elderly people? For the interventional group, Participants will receive 30g of SUSTINEX Hydrolyzed Whey Protein. The participants will be asked to add it to their food or drinks to reach the goal of consuming 30g daily. For control group, participants will receive no intervention- usual care, will receive the standard care of the clinic without supplemented with PS.