Potatoes-Yep, aside from being stacked with carbs they actually give you half of your daily vitamin B6 which is needed to produce the 'happy' chemical-serotonin. Try a dish of microwaved potatoes with cottage cheese.

Prawns-All you need is just 100g to provide you with all the tryptophan (amino acid which produces serotonin) for your RDA. It sure is a great excuse to have a prawn cocktail. How bout making a delicious stir fry at home with prawns and green beans?

Turkey-This comes as a surprise to most but, similar to the prawns, turkey too contains tryptophan giving you an excellent mood boost. Will you be adding that turkey roast twice this week?
Delve into these foods and switch your frown upside down.