Ever heard that you shouldn’t do your grocery shopping on an empty stomach? It turns out that advice is pretty valuable, as new research finds it could cost you an extra $26 per trip, on average. The average person makes two trips to the grocery store a week and budgets $162 for the food.

Grocery shopping while hungry leads 76% to spend more money than they’d like and six in 10 admit it also makes them ditch their health goals. Even with a budget, 62% of respondents admit they’ll typically spend up to 20% more than what they planned for groceries for the week, while 20% say they never overspend. To get all the items on their list, people usually need to hit up two supermarkets in a week and their average grocery run takes 39 minutes. Some times are better for hitting the grocery store, with the best time to avoid crowds being 8:00a.m. to 9:59a.m., while the worst time is from 4:00p.m. to 5:59p.m.

More than half (59%) usually shop from a grocery list and 79% of those who do say it helps them avoid overspending. Specific brands are really important to some shoppers, including 41% who have preferred brands they’re willing to go to another store to buy if their usual store is out of stock.

The most common “must-have” groceries people buy regularly are bread (54%), eggs (52%), meat (51%), milk or milk substitutes (50%), coffee (35%) and bananas (35%). Bananas are actually the most-purchased grocery in the U.S., something 60% of respondents weren’t aware of. The survey also asked about the right stage to eat a banana and half say it’s when it’s “yellow with no spots,” while 6% like their bananas when they’re still “mostly green,” 23% go for a “green/yellow” combo, 13% like them “yellow with brown spots” and 1% prefer “mostly brown.”