This article by a nutritionist in "The Conversation", reports on the evidence that some foods have a sufficiently high risk of causing cancer that they should come with warning labels:
Alcohol, more than 500 grams of cooked meat a week, processed meat and salty and salt preserved foods are under the spotlight.
With regard to which foods may reduce the risk of cancer, the nutritionist says:
...there is probable evidence that you can reduce your risk of bowel cancer by regularly eating garlic and foods high in dietary fibre, such as wholegrains, legumes, pulses, high-fibre cereals, vegetables and fruit. In fact, for every ten grams of fibre you consume per day, your risk reduces by 10%.
Eating plenty of non-starchy vegetables and fruits is associated with lower risk of cancers of the mouth, throat, oesophagus and stomach; while foods high in folate, such as green leafy vegetables, legumes, seeds, citrus fruits and fortified breads and cereals, are associated with lower risk of pancreatic cancer and diets high in calcium with lower risk of bowel cancer.
Worth bearing in mind when it comes to what and what not to eat, given our higher risk of developing secondary cancers.
The New Holland Honeyeater in the photo enjoys a mixed diet of insects and nectar. You need to have the right native plants around to attract them, which for me means a walk of about 1km before I see them around. One rather unique skill these birds have, is that they capture many insects on the wing and hold them in their bill, then return to their perch to eat them.
(Australia was named New Holland until the British overtook the Dutch interest in our great southern land.)