What makes up the part of food that’s neither carbs, protein, fibre, nor fats?

Question

Nutritional information doesn’t add up to 100% (or 100g per 100g).

I always thought that ‘fibre’ was a catch-all category for stuff we don’t digest and which thus helps to ‘lubricate’ the digestive tract.
I just realised that’s wrong—and that lettuce has only ~2g of fiber per 100g, which blew my mind also!

So my question is: what makes up the rest of the food we eat?
Thanks! 🙂

In: Biology

Answer 1

Water. Most living things are mostly water. Lettuce is 96% water. meat is like 75% water. Even dry fruit like like 20% water. Most stuff you eat is wet enough you can squeeze it and make juice come out.