Omg my son was horrendous growing up with food. There were three meals on rotation, toast, lots of fruit and junk! And to top it off he had allergies to nuts & sesame seeds! I gave up forcing him to eat different foods and eventually he just wanted to try different things and now eats most things without complaining. He’s 11, 170cm tall & doesn’t look like he’s malnutritioned & is always in pretty ok health. Hang in there it gets easier & they will get better. One thing I did do while he was younger was give him vitamin gummies. He thought they were lollies but I felt better that he was having vitamins to replace lack of veggies. And to top it off I’m Italian and his dad is Greek. We cook all the time and even grow alot of our own food! So we were stumped with our son & how fussy he was.