in [ ]nutrients out[ ]int index entries to data columnsdescription non-null values group non-null values units non-null values value non-null values id non-null values dtypesfloat ( )int ( )object( noticed thatfor whatever reasonthere are duplicates in this dataframeso it makes things easier to drop themin [ ]nutrients duplicated(sum(out[ ] in [ ]nutrients nutrients drop_duplicates(since 'groupand 'descriptionis in both dataframe objectswe can rename them to make it clear what is whatin [ ]col_mapping {'description'food''group'fgroup'in [ ]info info rename(columns=col_mappingcopy=falsein [ ]info out[ ]int index entries to data columnsfood non-null values fgroup non-null values id non-null values manufacturer non-null values dtypesint ( )object( in [ ]col_mapping {'description'nutrient''group'nutgroup'in [ ]nutrients nutrients rename(columns=col_mappingcopy=falsein [ ]nutrients out[ ]int index entries to data columnsnutrient non-null values nutgroup non-null values units non-null values value non-null values exampleusda food database www it-ebooks info