Go grocery shopping every two weeks? You can — and without hoarding.

Among the essential activities allowed during mandatory stay-at-home orders caused by the coronavirus pandemic is grocery shopping, but most experts agree that residents should cut back on the number of trips they make to the store as part of their social-distancing strategy.

One key to doing that is to create a list of essentials and stick to it, said Joanna Michalowska, a dietitian and doctoral candidate from the Medical University of Poznan in Poland, who worked with a team of health professionals there to create a tool — the Omni Food Calculator — designed to help people understand how much food they need for a two-week period.

“When something like this happens, we don’t know what’s going on, how to behave,” Michalowska said. Continue reading.