Not OP, but I've done ~16:8 intermetinent fasting (aka skipping breakfast) many times during my life, and have almost always experienced morning crankiness like you.
At times I've felt the crankiness has been good; the increased aggression has led to some really productive mornings. The flip side of the coin is that it sometimes also leads to negative thoughts and feelings of pessimism until I eat.
I prefer to have a more stable mood so what I'm doing as of late is drinking a protein shake with oat milk for breakfast and a high-quality multi-vitamin. The crankiness completely goes away and mental acuity is still high. It's still excellent for weight control since it's a ~200kcal breakfast that is digested very fast. Arguably better for recovery too since I practice sports every day. It's definitely not IF but it's been serving me well.
I'm also experimenting with a ~24h fast once a week, from Sunday lunch to Monday lunch, but don't have enough experience to know what it's doing for me yet.
At times I've felt the crankiness has been good; the increased aggression has led to some really productive mornings. The flip side of the coin is that it sometimes also leads to negative thoughts and feelings of pessimism until I eat.
I prefer to have a more stable mood so what I'm doing as of late is drinking a protein shake with oat milk for breakfast and a high-quality multi-vitamin. The crankiness completely goes away and mental acuity is still high. It's still excellent for weight control since it's a ~200kcal breakfast that is digested very fast. Arguably better for recovery too since I practice sports every day. It's definitely not IF but it's been serving me well.
I'm also experimenting with a ~24h fast once a week, from Sunday lunch to Monday lunch, but don't have enough experience to know what it's doing for me yet.