Old beardie - Not eating, trying baby food?

[Kat11964]

Just as the title suggests, I have an old male beardie, I adopted him about 3 years ago, and think he may be about 10 yrs based on his size (22 in) and mannerisms for the last few years. His health started to go south about a year ago and his weight has dramatically decreased over this time as well. His appetite is absolutely no more, he does not hunt (hand fed crickets regularly (10 Lg per day), always dusted with calcium and vitamins) and now he will not actively eat his greens (consisting of kale and bell peppers) I read somewhere not too long ago that someone was feeding their beardie baby food, so i started giving that a shot. He takes it but it takes a lot of coaxing, I use a plastic syringe that holds a max of 3 ml of baby food. I'll be specific its "Beech Nut naturals, just kale + apple" and the ingredients are listed as literally "kale, apples" so i got that one and i've been trying that for about a week now.


So my question is:
How much should I feed him daily in order for him to get a full serving of daily greens?
Should I be feeding him this at all? If not what can I do?
Anyone with experience in feeding dragons baby food??