Temporary price rises for only one year were found to reduce consumption less, they said.
But the tomato sauce and olive oil have been found in some studies to reduce the risk of cancer.
In that group, tamoxifen has been found to reduce the risk of breast cancer by 45 percent.
Aspirin has been found to reduce the risk of death from cancer by about 7%.
It has also been found to reduce carbon stores in the soil.
Overall, no single nutrient has been found to reduce the risk of cancer.
As a result, obesity has been found to reduce life expectancy.
It has been found to reduce mortality in those with sepsis.
Many methods have already been found to reduce greenhouse gas emissions.
Early education has been found to reduce symptoms in children as well.