Autoimmune disease is caused by the immune system losing the ability to differentiate proteins belonging to your own body with proteins belonging to a foreign invader (like a bacteria, virus or parasite).
What causes symptoms is the build up of damage to cells, tissues and/or organs in the body–damage caused by your own immune system attacking those cells. Which proteins/cells are attacked is what separates once disease from another.
In Hashimoto’s Thyroiditis, the thyroid gland is attacked. In Rheumatoid Arthritis, the tissues of your joints are attacked. In psoriasis, proteins within the layers of cells that make up your skin are attacked. However, the root cause is the same.
Genetic predisposition to autoimmunity makes up about one-third of your risk of developing an autoimmune disease.
The other two-thirds of your risk come from environmental factors, which include: diet, lifestyle, infections (both prior and persistent) exposure to toxins, hormones, weight, etc.
While you cannot control your genetics or whether or not you had MSG as a kid, you do have an immense amount of control over your diet and lifestyle (and the extent that these affect hormones and weight and even toxin exposure).
By removing the foods that contribute to a leaky gut, gut dysbiosis (the wrong numbers, relative quantities, or types of microorganisms typically growing in the wrong locations in your gut), hormone imbalance, and that stimulate inflammation and the immune system, you can create the opportunity for your body to heal.
By addressing important lifestyle factors and changing your focus to eating nutrient-dense foods that support optimal gut health (and optimal health of your gut microorganisms), that restore levels of important nutrients and provide all of the building blocks that your body needs to heal and properly regulate the immune system, that helps resolve inflammation and support organ function, you create an environment in your body conducive to healing.