Your asking this question reminded me of a father-son conversation we had back in February of this year
Since then, my skin has tightened. At 55, I’ll take it. My son hasn’t asked since then, but I chalk that up to teenage onset surliness syndrome. I skip meals but I don’t do extended, i.e., past 24-hour fasting. Other than remain adamantly LCHF, and my standard morning routine, nothing else extraordinary.