There are various causes of depression and related disorders such as anxiety and OCD. In fact, so often anxiety and depression are actually coupled with each other. But one of the least known and most ignored factors is an amino acid deficiency. It is fairly rare, and it manifests itself actually as a severe form of obsessive compulsive disorder. But unlike other forms, it is considerably easier to treat. It has nothing to do with how much meat you eat or how many other forms of amino acids you may use in your diet.
Your body actually does not actively absorb those nutrients, at least not to a preferable degree. Like many others, many sufferers are highly unlikely to admit they even have a problem. But from descriptions from family members and others, the difference is like night and day. All you have to do in this diagnosed case is to supplement specialized amino acid supplements into their diet. I’ve known people who snuck it into their food or something, which was rather entertaining.
Now it can’t explain all of someone’s issues in various cases. But it can give them a greater handle on things in general. For example, if they are a flaming racist, chances are they’re still going to be a flaming racist with this treatment. However, for example if they have issues with touching doorknobs, leaving a certain room after certain activities, etc, it could definitely apply.