We don't have to go for the truth even if we believe it to be obtainable. We can start by linking to accessible sources and requiring exact citations. Wikipedi

We don't have to go for the truth even if we believe it to be obtainable. We can start by linking to accessible sources and requiring exact citations. Wikipedia has been doing it for ages. Then we may require impactful publications to be available to the public including a comment section for professionals in that field. then we can do an itemized bill disclosing who paid for the study again with a link to the entity explaining why they did and a comment section with the finances for professionals only. Have fines depending on the size of the org and the size of the audience and require retractions, updates and/or disclosure of the objections raised. That way it would be hard to publish that chocolate helps losing weight (as the funding is revealed) but if you manage to do it the citations by others would eventually link to retractions.