First, let's check the cart size
According to a study on eating habits, people who eat on larger plates are less satisfied compared to those who eat on a smaller plate, even if both plates have the same amount of food. 
The study concluded that we often eat more than we realize when plates are larger. Now, if we compare this to shopping carts, we can apply the same concept.Most of us wouldn't overfill a shopping cart; when your cart is half-empty, you're more inclined to buy more!
So, keep this in mind the next time you shop. You could put your handbag in the cart so it can take up some space, or fill up only one corner and make a bet with yourself that you wouldn't fill up the rest. Or, even better, choose a small cart!Shop around supermarket parameters
If you notice, most large supermarkets have the main food products in the corners; meat, dairy, fish, vegetables, etc. In the middle, you'll find many different packaged goods like tunas and 50 types of sauce. Shop around the parameters so you tour all the important parts of the supermarket, and complete your shopping trip at a quicker time.
If you need to buy things from the middle part of the supermarket, have a list beforehand so you're not encouraged to buy things you don't need. Take your list with you
There are plenty of apps that can help you plan out your grocery shopping trip beforehand, such as the smart shopping app, Swan
. By prepping a list, you'll save up on money – so you don't make unnecessary or double purchases – and you won't forget to get the milk.
It also serves as a reminder when you see a promotion on three tubs of your favorite ice-cream. Your grocery shopping list is your physical conscience.Eat beforehand
Grocery shopping, while you're hungry, can be your biggest enemy against controlling your purchases.
In fact, you're more likely to buy more when you're hungry.
A study actually proved that shopping while hungry can change your perception of food! 
Also, you're more likely to buy ready-made or processed foods that are high in fats, because your stomach and brain are working hand-in-hand, thinking "we need something to munch on, and we need it fast."Hide your eyes when you're waiting to checkout
We've all been there, and we keep going there. Whenever you're waiting for the cashier, you're tempted to grab a thing, or two, or five, from beside you.
We're not actually
asking you to hide your eyes, but you can distract yourself by reading the magazines beside the chocolates, or even checking your phone if rationally convincing yourself doesn't work. It's okay to not be 100% 'healthy'
While it's easier to label things as 'good' or 'bad', 'unhealthy' and 'healthy', it's okay to eat conventionally unhealthy food. You know what your body needs, and what's best for you – so there's no need to feel bad if you grab snacks every now and then, so long as you practice mindful eating, in moderation!
For more tips around grocery shopping, check out our blog http://swan.shop/blog