[seanmcdirmid]

Grand parent's comment was about feeling ravenous during swimming, not just "hungry." Diet is not as simple as eating less food, since you are eating less, you need to make an extra effort to ensure your body is still getting what it needs.

[biot]

I've heard people say "I'm famished!" and I don't for a second think that they've been through a literal famine and are starving to death. Maybe GP used "ravenous" literally, or maybe it's just a figure of speech to indicate having built up a good appetite.

[seanmcdirmid]

I've totally had points where my work out crashed because my body was out of something. It could be water, protein, or even sugar or salt. There is a huge difference between "hungry" and body is shaking, weak feeling.

[epimetheus]

I meant that I was ravenous after swimming, not typically during. I used that word because it's different than the usual "I'm a bit peckish" that happens in the morning or after a few hours of not eating. I like the comment about thirst, it could easily be that.

I did bodybuilding for ~5 years and did the whole bulk/cut cycle every 3-4 months so I had quite a few cutting session and a few times I let myself go (30-40lbs overweight) and had to lose more than 10-15lbs; in those instances I did IF (Intermittent Fasting) and ate in 6-7 hour windows (evening). The first week or so you get pretty hungry in the morning, but after that it's pretty easy.

I only say this because I want to express that I'm familiar with just being a bit hungry vs much more than that. When I was 19 I lived with a friend and we were both broke, I dropped from 180lbs to 145lbs (on my frame that was skeletal) in a few months from not eating much at all. That was pretty severe hunger, but even my ravenous after swimming isn't as bad as that was.

FWIW, and if it matters at all, I'll be 39 in a month.