Yeah, that's probably correct - it just feels like a really odd way to present the data.
What I'd like to know is your last bit - is one quarter of a household eating 25% less on their own, or does "mom" on Ozempic cause "dad and 2 kids" to eat 5% less individually? The former isn't nearly as interesting to me as the latter...
I'd go for this one. Which means the one person reduces their food intake by at least double the 5%.
Or possibly the other people in the household see them eating less and follow their example...