If you think you don’t need to worry about bisphenol A (BPA) now that Health Canada’s banned the nasty chemical from plastic bottles, think again. A small-scale study from the Harvard School of Public Health shows BPA — which is linked to diabetes and obesity — from the lining of cans has a significant effect on us, too. Researchers split 75 people into two groups; the first ate a serving of canned vegetable soup every day for five days while the other group had a fresh version. They found those who ate the canned stuff had a 1,000-percent increase in their BPA levels over the other group. Bottom line: Keep it fresh in the kitchen. Stock up on frozen veggies instead of canned, and make your own soup or buy goods in glass jars.