The three factors that make a food satiating are its protein content, fiber content, and water content, all of which are typically missing from ultra-processed foods.

The degree of processing dramatically impacts blood sugar; a finely ground porridge spikes blood sugar like sugar, while a coarsely ground version with the same calories does not.

Creatine, found in grass-fed beef, supports brain energy and is particularly important for carriers of the ApoE4 Alzheimer's risk gene, who tend to have depleted levels.

In a condition called auto-brewery syndrome, yeast or bacteria in the gut can ferment carbohydrates into alcohol, causing intoxication and brain fog without drinking.

Proteins in gluten and dairy can break down into gluteomorphins and casomorphins, which have morphine-like effects on the brain, causing fogginess and cravings.

High levels of histamine from food or environmental allergies can act as a neurotransmitter, leading to a state of brain fog similar to hay fever.

Vitamin A, along with fiber, helps upregulate T-regulatory cells, which act like a conductor for the immune system to keep it balanced and prevent overreactions.

Avocados contain the highest concentration of fat-protecting antioxidants of any fruit or vegetable, which is crucial for the brain since it is 60% fat and vulnerable to oxidation.

Hyper-palatable foods like chips are designed to hijack our evolutionary survival drive for calorie-dense foods, making overconsumption a biological response rather than a moral failure.