6 month old loss of appetite

Jocelyn
My son turned 6 months on May 30th and he is a big eater. He drinks 7oz of milk in the morning, 8oz at night and for the mid day feeding he has two 2 ounce homemade baby food and 4 oz of milk after. Recently he's been eating less and less. Yesterday he barely ate in the middle of the day. He has 2 teeth already and he never had a problem eating when those were coming out.  He's not fussy so I know he's ok but I'm just wondering if anyone else has had this come up with their little ones and any tips on how to handle it. Thanks in advance!