Eat better, feel better!

There's a reason that our stomachs are often referred to as our second brains: the gut is responsible for producing around 90 percent of a person's serotonin, the chemical responsible for making you feel good. Since suffering from her last serious bout of depression in 2011, bestselling author and mental health advocate Rachel Kelly has developed a broad holistic approach to staying healthy and happy, and the heart of her recovery process involves a crucial shift in diet.

Over the past five years, Kelly has worked with nutritionist Alice Mackintosh to identify the foods that either drag us down or lift us up. Together, they have built up a repertoire of over five-dozen recipes that target particular symptoms, from insomnia and mood swings to anxiety and exhaustion.

In this bright, warm, beautifully designed cookbook with chapters ranging from Steady Energy and Beating the Blues to Hormonal Peace and Finding Comfort, they put all the theories into practice, explaining how you can incorporate these changes seamlessly into your daily life. Along with fantastic recipes and daily meal planners, each chapter features informative introductions explaining the nutritional science behind their advice. The Happiness Diet also offers cheat sheets of essential foods to incorporate into your diet, with comforting thoughts and inspirational quotes. Follow the advice in these pages, and even if it's the only life change you make, you will begin to feel stronger and lighter with each passing week. Happy eating!