Table 1 Search strategy

#1

[phytochemical (Tiab) or plant-based (Tiab) or extract (Tiab) or herb (Tiab)]

#2

[sarcopenia (Tiab) or muscle weakness (Tiab) or muscle wasting (Tiab) or muscle atrophy (Tiab)]

#3

[muscle mass (Tiab) or muscle strength (Tiab) or physical performance (Tiab) or walking speed (Tiab) or skeletal muscle index (Tiab) or Timed Up-and-Go test (Tiab)]

#4

[aged (Tiab) or age-related (Tiab) or older adults (Tiab) or elderly (Tiab)]

#5

#1 AND #2 AND #3 AND #4