Consuming foods without knowing the bad effects on your skin.
Some foods can cause or worsen pigmentation. Here are some examples:
Foods with high-glycemic index: Foods that are high in refined sugar or refined carbohydrates are broken down quickly, digested easily and increases the blood sugar levels. This leads to an increase in the insulin levels, leading to inflammation and release of free radical causing oxidative stress. Oxidative stress later causes pigmentation and loss of collagen which appears in the form of fine lines and wrinkles.
Processed and fried foods: These foods contain high amounts of saturated fats, trans fats and preservatives which increases the skin inflammation or irritation and may damage our immune system which triggers pigmentation. As fried foods are fried in excessive heat they also produce high levels of Advances Glycation End Products which again leads to skin inflammation and pigmentation. So, the next time you think of having fried food do think of the consequences!!
Arachidonic metabolites and Histamine-rich foods: Arachidonic metabolites and histamine rich foods are thought to play a key role in causing post inflammatory hyperpigmentation. Histamines are naturally increased in the body during any allergic reaction. So foods rich in histamine like aged cheese, alcohol, fermented foods should be avoided for any kind of induction in pigmentation.
Foods that contain tyramine: Tyramine is a natural compound that is found in animals and plants. It is a breakdown of tyrosine and amino acids. Consuming foods rich in tyramine like aged, fermented, or pickled foods, such as soy sauce, sauerkraut, and cured meats. Consuming excess tyramine can cause histamine release and trigger pigmentation.
So, in short what we eat is shown on the face. There are some foods that cause pigmentation or exaggerate the pigmentation. In that case we need to modify our diet which should be a healthy one with antioxidants, vitamins, minerals that reduces the oxidative stress and promote a healthy skin.
If the pigmentation is chronic which might be having some underlying cause then you should consult a good dermatologist.