Studies show that obesity leads to white matter in the hippocampus, reduced brain volume and reduced intelligence. is this true and can it be reversed?

The body is a: wonderful and amazing thing and is fully integrated. It functions best when it is treated with the best fuel and energy sources. Less healthy foods, especially eaten in excess that can lead to obesity, contribute to suboptimal function in the brain and entire body. How much of an effect is not quantifiable. You are young..any adverse affects can be reversed with healthy eating/normal weight.