13 month old refusing to eat

Hi don't stress out near feeding time . It's best you just make the baby sit you during feeding times and watches you eat . And keep food in front of the baby and let them play or explore no pressure. Maybe watching you he might wanna try something. Offer purees but don't put any pressure and see for a while.
You can watch solid starts guide they have good ones

Hey mama. My little boy barely touched food until he was 2. It’s very very normal for them to not want some foods. Have you tried baby led weaning and making it fun and exploratory? Maybe do some sensory play with cooked pasta and rice!
Have a look at a book called my child won’t eat - it saved my sanity.
Can I also ask if your child is still having milk? And, if you don’t mind, whether it’s breast milk or formula as I may be able to offer more advice :)

yes I have he touches the food and looks disgusted and won’t touch it again. I didn’t even know about that book I will check it out now! Yes he is still on a specialized formula and we are just introducing whole milk as well.

Ok so is he still having the formula?

yes