Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_18958648_1 ( obesity_rank INTEGER, state_and_district_of_columbia VARCHAR )

### Question ###
What is the least obesity rank for the state of Utah?

### Accurate SQL ###

SELECT MIN(obesity_rank) FROM table_18958648_1 WHERE state_and_district_of_columbia = "Utah"