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. 2023 May 3;26(9):1917–1924. doi: 10.1017/S1368980023000708

Table 3.

Expert responses on claims, labelling, advertisements, availability, adverse events, and monitoring and enforcement of weight-loss supplements (WLS) across thirty countries (n 30)

Questions n of yes responses (excluding ‘Don’t Know’) % Number of ‘Don’t know’ responses %
How claims related to WLS are regulated* (n 27) 3 10·0
  Certain claims are prohibited 20 74·1
  Pre-approval of claims is required 9 33·3
  Claims are required to have a scientific basis 14 51·9
  Claims are not regulated 5 18·5
Country has specific labelling requirements for WLS (e.g. warnings, disclaimers, instructions for consumption, etc.) (n 28) 17 60·7 2 6·7
  Country has regulatory limitations on advertising WLS (n 25) 14 56·0 5 16·6
  Specific limitations on advertising WLS to children (n 12) 6 50·0 9 30·0
Require disclaimers or warnings to be included in WLS advertisements (n 22) 11 50·0 8 26·7
Have limitations on where WLS can be sold (n 27) 2 7·4 3 10·0
Require certain WLS to be sold only with a prescription (n 27) 7 25·9 3 10·0
Have a minimum legal age to buy WLS (n 24) 1 4·2 6 20·0
Have specific laws and regulations regarding the online sale and purchase of WLS (n 25) 6 24·0 5 16·7
Require the manufacturer, importer or another agent (e.g. pharmacy) to report adverse events related to the WLS experienced by consumers (n 27) 15 55·6 3 10·0
Have an official process for reporting adverse events experienced after consuming a WLS (n 27) 22 81·5 3 10·0
Make reports on adverse events related to WLS available to the public (n 27) 11 44·0 3 10·0
Take steps to determine whether a recall is warranted when adverse event related to WLS is reported (n 29) 22 75·9 1 3·3
Uses penalties or other sanctions for non-compliance with:* (n 19) 11 36·7
  Pre-market regulation 12 63·2
  Claims 15 78·9
  Labelling 16 84·2
  Advertisements 12 63·2
  Availability 4 21·1
  Adverse event reporting 10 52·6
  No sanctions 1 5·3
*

Question allowed respondents to ‘check all that apply’; responses are not mutually exclusive.

Sample size varies depending on number of ‘don’t know’ responses. Sample sizes listed per question have excluded the number of ‘don’t know’ responses for that question.

Question administered only to twelve respondents who answered ‘Yes’ to ‘Country has regulatory limitations on advertising WLS’.