The charity says the move could reduce the risks of adults contracting several forms of cancer.
The call could provide further impetus to an already growing trend towards wines around 9%-10% abv and away from the heavy 14% wines that have become the norm in recent years.
The WCRF says people who drink a 25cl glass of wine a day would cut th?eir risk of contracting bowel cancer by 7% if they switched from a 14% abv wine to 10%.
Such a switch would reduce drinkers’ chances of getting breast or liver cancer and cancers of the oesophagus, mouth, pharynx and larynx by a similar amount.
Dr Rachel Thomson, science programme manager at the WCRF, said: “From a cancer?-prevention point-of-view it is best not to drink at all, but we have to be realistic?. Many people enjoy a drink and see it as part of their social life.
Switching to a lower?-alcohol alternative is still something positive they can do.
“It is true that most wines in the supermarket these days tend to be 13%-14% abv, which means finding lower-alcohol alternatives can be difficult.
It will hopefully become easier because the industry seems to be taking the issue seriously.”