Table 1.

Summary of included studies.

	References	Study Location	Study Design	Methods
1	[49]	Chhattisgarh	Qualitative	Semi-structured interviews and observation.
2	[50]	Kashmir	Qualitative	Household interviews.
3	[52]	Maharashtra, West Bengal	Quantitative	Secondary data analysis. National Sample Survey (NSS) data, round 43.
4	[53]	Tamil Nadu	Quantitative	Household interviews.
5	[42]	India	Quantitative	Secondary data analysis. Bulletin on Food Statistics (1973–1989).
6	[47]	Uttar Pradesh	Mixed	Primary and secondary data analysis: Household interviews. (primary data), NSS, round 68 (secondary data).
7	[48]	Uttar Pradesh	Mixed	Structured survey And interviews
8	[45]	Andhra Pradesh, Maharashtra, Rajasthan	Mixed	Household interviews.
9	[54]	Rajasthan	Quantitative	Secondary data analysis. (NSS, round 55).
10	[21]	Andhra Pradesh, Chhattisgarh, Odisha Tamil Nadu, West Bengal	Quantitative	Secondary data analysis (NSS, rounds 61–66).
11	[55]	Chhattisgarh	Quantitative	Secondary data analysis (NSS, rounds 55 and 61).
12	[43]	India	Quantitative	Secondary data analysis (NSS, rounds 38, 50, 61 and 66).
13	[56]	Bihar	Quantitative	Secondary data analysis (NSS, rounds 50, 61, 66 and 68).
14	[57]	Odisha	Quantitative	Secondary data analysis (NSS, rounds 50, 61and 68).
15	[58]	Assam, Mizoram, Uttar Pradesh, Bihar, Chhattisgarh, Rajasthan, Delhi, Jharkhand, Kerala, Madhya Pradesh, Maharashtra Uttarakhand	Quantitative	Semi structured interviews
16	[59]	Andhra Pradesh, Odisha	Quantitative	Structured household interviews.
17	[60]	Kerala	Quantitative	Secondary data analysis (NSS, round 61).
18	[61]	Kerala	Quantitative	Secondary data analysis (NSS, round 61).
19	[51]	Odisha	Qualitative	Household interviews.
20	[46]	Bihar	Mixed	Structured village interviews.
21	[62]	Kerala	Quantitative	Structured household interviews.
22	[44]	India	Quantitative	Secondary data analysis (NSS, round 55).
23	[63]	Andhra Pradesh	Quantitative	Secondary data analysis (1992–1993 Indian National Family Health Survey and NSS, round 50).