“…Thirty‐seven studies reported on supplement use, 50–86 10 studies reported on diet, 50–55,87–90 10 included smoking, 50–52,54–59,91 8 included alcohol use, 50,51,54,56–59,89 and 5 included physical activity 50–53,90 . Thirty‐eight studies were quantitative, 50–52,54–58,60–64,66–74,77,78,80–91 and four were qualitative 53,65,75,76 . The majority of studies were conducted in high‐income countries (HIC) ( n = 31: United States, 51,54,59,79–89,91 United Kingdom, 75–77 Italy, 56,57,65,66 the Netherlands, 71,72 Australia 53,60 Croatia, 62 Ireland, 64 the Kingdom of Saudi Arabia, 67 Poland, 58 and United Arab Emirates 78 ).…”