Does combining intermittent fasting (IF) with Ocrevus treatment help in reducing MS fog in people with progressive MS?

I have been on the Ocrevus treatment for several years now and doing an IF dietary regiment where three alternate days per week my caloric intake is under 500 calories. I believe this combination has reduced my MS fog and enabled me to focus better on my work activities, and I would be interested in knowing if it would have the same effect in other people.