Table 1. Search strategy for OvidSP Medline.

Search #	Search term
1	(health* OR well-being OR wellbeing).ti,ab.
2	(prevalence OR incidence OR risk OR rate OR mortality OR morbidity).ti,ab.
3	1 OR 2
4	(obesity OR malnutrition OR malnour*).ti,ab.
5	(overweight OR over-weight).ti,ab.
6	(underweight OR under-weight).ti,ab.
7	((nutrient OR iron OR iodine OR “vitamin d” OR “vitamin b12” OR calcium OR “vitamin a” OR zinc OR magnesium) adj2 (deficien* OR shortage* OR value*)).ti,ab.
8	(anemia or anaemia).ti,ab.
9	(hypertension OR “blood pressure” OR BP OR stroke).ti,ab.
10	(diabetes OR ICH OR “heart disease” OR CKD OR “kidney disease” OR chronic).ti,ab.
11	(cardiovascular OR cardio-vascular).ti,ab.
12	cancer.ti,ab.
13	((environment* OR climate*) adj5 (friendly OR sustainab* OR footprint or foot-print or "foot print" or biodivers* or nitrogen or impact* or damage* or greenhouse or land* or “land use” or water* or use* or benefit* OR implication* OR carbon)).ti,ab.
14	(vegan* or vegetarian* or flexitarian* or pescatarian* or fish* OR sea-food OR seafood).ti,ab.
15	((meat or animal-sourced or "animal sourced" or ultra-processed or "ultra processed" or UPF or dairy) adj3 (reduc* or decreas* or free)).ti,ab
16	((plant-based OR “plant based” OR plantbased OR fruit* OR vegetable* OR legume* OR nut* OR pulse*) adj3 (increas* OR higher)).ti,ab.
17	((diet* or consum* or "eating pattern" or meal* or nourish*) adj3 (current or average* or change* or shift* or choice* or scenario* or habit* or sustain*)).ti,ab.
18	4 OR 5 OR 6 OR 7 OR 8 OR 9 OR 10 OR 11 OR 12
19	3 AND 17
20	14 OR 15 OR 16 OR 17
21	13 ND 19 AND 20