There is a lot of incoherence in your food database.
Especially around weight.

Almost all food is measured by 100grams or a serving.

This means that you only really need 3 options for any ingredient, per 100grams, per portion (~30g) and 1gram

But still i get chicken breast listed at 150grams, meaning i have to do headmath to know if the calories are close to what it says on my food since its hard to know if your database includes bone skin etc