Overall, the study does not provide any evidence that people should switch to or from a vegetarian diet. It's possible to have a balanced, healthy diet whether you eat meat or not. And of course, many people chose to eat a vegetarian diet for primarily ethical rather than health reasons.
Regardless of the diet you eat, the study also emphasises the importance of identifying and managing high blood pressure and high cholesterol.
It's difficult to know how much confidence the conclusions of this review warrants. All of the evidence was assessed to be "low" or "very low certainty" by the researchers themselves, meaning the results could be unreliable.
Also, even a small reduction in risk of common health outcomes such as cardiovascular disease and cancer could make a big difference at a population level.
Arguably it would be prudent to stick to World Cancer Research Fund recommendations, at least until higher-quality evidence becomes available.
Policymakers must do more than tell people to show greater willpower if government is to crack the obesity problem, says a new report from the British Psychological Society.
This document has been co-produced with a number of professional organisations for the public health workforce.
It describes the intent of professional organisations to work together, support and enable the public health workforce to have healthier weight conversations and maximise population behaviour change, helping individuals and communities significantly reduce their risk of obesity, in order to support the national ambition to halve childhood obesity rates by 2030.