Question

some beans are not as nutritious as meat degree of comparison​

Answer 1

It can be changed in comparative degree only so the answer is
Meat is more nutritious than some beans

Answer 2

Answer:

In the given sentence,

Degree of comparison is Positive degree.

Change in the degree of comparison is :-

a) Comparative degree - Meat is more nutritious than some beans.

b) Superlative degree - Meat is the most nutritious of all.

Hope it helps you :)