Table 2 Comprehensive search strategy

Sl no.

Search queries

1.

(((((LMICs) OR (“developing countries”[MeSH Terms] OR “developing countries”[All Fields] OR “developing country”[All Fields])) OR (Urban)) OR (Rural))) OR (Peri-Urban)

2.

(((((((((((Exercise[MeSH Terms]))) OR (physical exercise[MeSH Terms])) OR (physical exercises[MeSH Terms])) OR (physical activities[MeSH Terms])) OR (physical activity[MeSH Terms]) ) OR (Exercise)) OR (Physical Exercise)) OR (Physical Activities)

3.

(((((((“nutritional support”[MeSH Terms] OR “nutritional support”[All Fields]) OR “nutritional therapy”[All Fields]) OR “nutrition therapy”[MeSH Terms]) OR “nutrition therapy”[All Fields])

4.

((((Meal Plan) OR “meals”[MeSH Terms] OR “meals”[All Fields]) OR “meal”[All Fields]) AND “Plan”[All Fields])

5.

(((“weight loss”[MeSH Terms] OR “weight loss/analysis”[MeSH Terms] OR “weight loss/diet therapy”[MeSH Terms] OR “weight loss/epidemiology”[MeSH Terms] OR “weight loss/metabolism”[MeSH Terms] OR “weight loss/statistics and numerical data”[MeSH Terms]) OR (weight reduction[MeSH Terms])) OR (body weight change[MeSH Terms])) OR (body weight changes[MeSH Terms])

6.

((((((((lifestyle[MeSH Terms]) OR (lifestyle risk reduction[MeSH Terms])) OR (sedentary lifestyle[MeSH Terms])) OR (life style[MeSH Terms])) OR (“life style/epidemiology”[MeSH Terms] OR “life style/analysis”[MeSH Terms])) OR (Lifestyle changes))) OR (lifestyle modifications) OR“life style”[All Fields]) OR “lifestyle”[All Fields]) OR (“Lifestyle Interventions”[All Fields])

7.

(((“diabetes mellitus”[MeSH Terms] OR “diabetes mellitus, type 2”[MeSH Terms]) OR (“diabetes mellitus, type 2/analysis”[MeSH Terms] OR “diabetes mellitus, type 2/blood”[MeSH Terms] OR “diabetes mellitus, type 2/classification”[MeSH Terms] OR “diabetes mellitus, type 2/complications”[MeSH Terms] OR “diabetes mellitus, type 2/diagnosis”[MeSH Terms] OR “diabetes mellitus, type 2/diet therapy”[MeSH Terms] OR “diabetes mellitus, type 2/drug therapy”[MeSH Terms] OR “diabetes mellitus, type 2/epidemiology”[MeSH Terms] OR “diabetes mellitus, type 2/ethnology”[MeSH Terms] OR “diabetes mellitus, type 2/etiology”[MeSH Terms] OR “diabetes mellitus, type 2/history”[MeSH Terms] OR “diabetes mellitus, type 2/physiopathology”[MeSH Terms] OR “diabetes mellitus, type 2/prevention and control”[MeSH Terms] OR “diabetes mellitus, type 2/statistics and numerical data”[MeSH Terms] OR “diabetes mellitus, type 2/therapy”[MeSH Terms] OR “diabetes mellitus/analysis”[MeSH Terms])) OR (“diabetes mellitus/classification”[MeSH Terms] OR “diabetes mellitus/complications”[MeSH Terms] OR “diabetes mellitus/diagnosis”[MeSH Terms] OR “diabetes mellitus/diet therapy”[MeSH Terms] OR “diabetes mellitus/drug therapy”[MeSH Terms] OR “diabetes mellitus/epidemiology”[MeSH Terms] OR “diabetes mellitus/prevention and control”[MeSH Terms] OR “diabetic cardiomyopathies/metabolism”[MeSH Terms])) OR ((“diabetes”[All Fields] AND “mellitus”[All Fields])) OR “diabetes mellitus”[All Fields]) OR “diabetic”[All Fields]) OR “diabetics”[All Fields]) OR “diabetes”[All Fields] OR “T2DM”[All Fields] OR “DM”[All Fields]

8.

“random allocation”[MeSH Terms] OR (“random”[All Fields] AND “allocation”[All Fields]) OR “random allocation”[All Fields] OR “random”[All Fields] OR “randomization”[All Fields] OR “randomized”[All Fields] OR “randomisation”[All Fields] OR “randomisations”[All Fields] OR “randomise”[All Fields] OR “randomised”[All Fields] OR “randomising”[All Fields] OR “randomizations”[All Fields] OR “randomize”[All Fields] OR “randomizes”[All Fields] OR “randomizing”[All Fields] OR “randomness”[All Fields] OR “randoms”[All Fields] OR “clinical trials as topic”[MeSH Terms] OR “clinical trials as topic”[All Fields] OR “trial”[All Fields] OR “trials”[All Fields]

9.

((clinical trials, randomized [MeSH Terms]) OR (controlled clinical trials, randomized [MeSH Terms])) OR (randomization [MeSH Terms]) OR “RCT”[All Fields] OR “RCTs”[All Fields]

10.

1 AND 2 AND 3 AND 4 AND 5 AND 6 AND 7 AND 8 AND 9

11.

Filters applied: Clinical Trial, Randomized Controlled Trial, Humans.