Table 6 MEDLINE database search strategy and number of results. Search conducted on the 13/November/2023

S1

(MH "Health Literacy+") AND (MH "Food")

115

S2

(MH "Health Literacy+") AND "food literacy"

80

S3

( "food literacy" or (food w/3 literacy) ) OR nutrition literacy

633

S4

S1 OR S2 OR S3

705

S5

(MH "Program Evaluation+") AND (MH "Internet-Based Intervention") AND (MH "Health Promotion+") AND "Intervention or Program or Project or strategy"

8234138

S6

( (MH "Adult+") OR (MH "Young Adult") OR "adults" ) OR young w/2 adults OR older w/2 adults

161,888

S7

( S1 OR S2 OR S3 ) AND ( (MH "Program Evaluation+") AND (MH "Internet-Based Intervention") AND (MH "Health Promotion+") AND "Intervention or Program or Project or strategy )

320

S8

( S1 OR S2 OR S3 ) AND ( (MH "Program Evaluation+") AND (MH "Internet-Based Intervention") AND (MH "Health Promotion+") AND "Intervention or Program or Project or strategy ) AND ( ( (MH "Adult+") OR (MH "Young Adult") OR "adults" ) OR young w/2 adults OR older w/2 adults )

123

S9

S6 AND S7

123

S10

S9 with Limiters - Date of Publication: 20010101- 20231231 Expanders - Apply equivalent subjects- Narrow by Language: - English Search modes - Boolean/Phrase

113