Bananas

Most people know that bananas contain potassium and vitamins, to name a few of its positive properties. That's why it is very good for you to consume at least one a day. Among all the great benefits, bananas also contain tryptophan, which is really helpful to boost your mood.

(Read also: Your friends are drinking lemon water, and here's why)

Bananas contain tryptophan, which is beneficial to boost your mood.(Shutterstock/-)

Coffee

With approximately 80 percent consumed in the form of coffee, caffeine is the world's most widely used central nervous system stimulant. That's why many people around the world crave coffee and feel positive that it gives them a good start into the day.

Coffee is more than just a drink to keep you awake; it contains caffeine, known as the world's most widely used central nervous system stimulant.(Shutterstock/-)

Clam

An open clam has the appearance of a smile, and indeed that's the origin of the famous phrase: "happy as a clam". Coincidentally, clams can actually make you happy, because they contain vitamin B12. The lack of that vitamin in your system can lead to depression.

Clams can actually make you happy, because they contain vitamin B12.(Shutterstock/-)

Dark chocolate

In movies and, sometimes, in real life, chocolate wonderland is where people run to when they are troubled and need stress relief. Dark chocolate is very good for your mood, because it can reduce your stress hormone cortisol.

Dark chocolate is very good for your mood, because it can reduce the stress hormone, cortisol.(Shutterstock/-)

Salmon

Besides healthy fats that give you nice hair, salmon is also packed with omega 3, which is known to improve and stabilize your mood and fend off depression. Salmon is also very good in helping you increase your focus and memory, which means it’s sushi time!

(Read also: Coffee lovers, here are some fun facts about coffee)

Omega 3, which can be found in salmon, is known to improve and stabilize your mood and help you fend off depression.(Shutterstock/-)

Green tea

Everybody knows that green tea has many benefits for your health, and one of those benefits is reducing your stress. This positive effect comes from theanine, and green tea contains lots of it. The more you drink green tea on a regular basis, the happier you'll be.

It is best to drink green tea often in a healthy dosage due to its theanine, which can lower your stress level.(Shutterstock/-)

Mushrooms

The high selenium and magnesium content in shiitake mushroom will lift your mood. Most mushrooms also contain a high amount of vitamin D, which is very useful to fight depression and stabilize your mood. (kes)

Most mushrooms are rich in vitamin D, which is very useful to fight depression and lift your mood.(Shutterstock/-)