Campaign draws up eight principles to guide people who want to be healthier and reduce their environmental impact

Eating less meat has long been advocated for our health and that of the planet, but the choices we make within that advice can be just as important, according to a new report.

Choosing lamb, for instance, means the animal is almost certain to have been grass-fed and free range, as sheep are not factory farmed in the same way as pigs or chickens. Meat from pasture-fed animals also tends to have higher levels of “good” fats, which are healthier.

The new campaign, by the Eating Better coalition of more than 50 civil society groups, shows consumers how the choices of meat and dairy products they buy have an impact on global problems, such as climate change, antibiotic use, hunger and malnutrition, and animal welfare.