I keep my diet simple, since this seems to work for an extremely neurodivergent person like me. I eat two meals with Oatmeal, and Spinach plus a small amount of peanuts and lots of lentils, which I take all my vitamin mineral supplements including oil soluble vitamins A and D.  I eat these two meals early and late in the day.  I take B vitamins with every meal. I take a gram of vitamin c twice a day. Oatmeal has about 16 percent of its calories from fat, so helps with absorption of vitamin A and D.

In my other meals(I eat many relatively small meals) I  eat a lot of lentils with oatmeal. Lentils are high protein and extremely low in fat. Oatmeal taken with lentils(or peanuts)compliment each other to make a complete protein if taken the same day. My diet is a high fiber, low fat, high protein, vegan one.  This is an extreme type diet, so not recommended for anyone. 

Do your own research and check with your doctor before designing your own diet. If you design a diet based on your own special research and self knowledge you have to do it at your own risk. I have messed up on my diet a lot in my life and had to make emergency changes at times. I am use to pushing the edge and carefully taking calculated risks that would be dangerous if I was not very experienced and extremely spiritually aware.