Cancer: Four foods to reduce tumour risk – a doctor's recommendations

Last, but not least, Doctor Li recommends oysters, as the meat contains proteins, polysaccharides, and amino acids.

The contents of an oyster have powerful antioxidant effects that protect DNA against free radical damage.

“Researchers found eating extracts from oysters can reduce DNA damage by 90 percent,” said Doctor Li.

“And [eating oysters] increase the protective antioxidant glutathione by 50 percent.”