There is no scientific evidence, as of 2015, proving that eating certain foods improves psoriasis, according to Health Magazine. However, eating a healthy diet that helps control or lose weight, one that includes plenty of lean protein, low-fat dairy products, whole grains, fruits and vegetables, may help control it.
Fatty fish is a good protein choice because it is rich in omega-3 fatty acids, which may reduce inflammation and calm the over-active immune systems of those with psoriasis, according to Health Magazine, which recommends eating fish at least twice a week. Lean white meats, such as chicken and turkey, are also good protein options. Other healthy dietary choices include vegetables that may have anti-inflammatory properties, such as carrots, squash, sweet potatoes, spinach, kale and broccoli, whole grains and legumes, such as beans and lentils, soybeans, nuts, avocados and flax seeds, as well as their oils, and fruits with anti-inflammatory properties, such as blueberries, mangoes, strawberries and figs, states Health Magazine.
It's safer to eat a healthy diet in general than it is to follow extreme diets that purport to cure psoriasis or to take supplements, according to WebMD. Eating a healthy diet that helps control or lose weight also lowers the risk of heart disease, diabetes and stroke, which is elevated in individuals with psoriasis, states Health Magazine.