Short-term tweaks aren’t the way to go if you want to eat healthier and be happier. It’s much more important to make long-term changes to what you eat, ensuring you have both the calories to fuel you, and the nutrients required to keep your body and mind functioning healthily. Instead of getting stuck in a cycle of short diets (and inevitably returning to old habits), aim to make healthy changes that will stick for a happier, more balanced mood.

Now discover our ranking of the best and worst vegetables, according to experts

Last updated by Laura Ellis.

How to eat yourself happy