Any validity to combining foods to maximize nutritional value?

[Guest guest]

How much validity is there to eating foods in combination to optimize their

nutritional value? Some food combinations make sense like eating fish or meat

with fat to help the body utilize the proteins or whatever or rice and beans

together which supposedly make a complete protein. Other proposed combinations

seem much less credible like combining certain fruits or vegetables or consuming

certain fruits alone because of their acidic content. It seems that any

combination of fruits or vegetables would be healthy. Variety and meeting

deficiencies seem to be the important considerations with consuming fruits and

vegetables not certain combinations to optimize nutritional value. Thanks for

any replies.