<human>: Can you succinctly summarize the text in 1-3 sentences?

This is a combination of discipline and my sister not noticing. She regularly rants to me about how other people tell her to raise her kids.. I hate to be that person! I believe the 4yo daughter (call her Jane) has an eating disorder. Jane is a bit of a "black sheep" and has a very dynamic and moody temperament. The older daughter, age 6, eats most things ok and never pitches a fit at the table.

I hate doing meal times with them. 

For example, saturday night was a big dinner with my sister, her 2 kids, my parents, and my daughter (age 2).

Jane did not eat a single bite of dinner besides biscuit. There was chicken + ketchup, mashed potatoes, corn, and biscuits. Grandmother insisted that I spoon-feed the kid. I didn't want to AT ALL. Grandmother had to plead, beg, and coerce, then threaten the kid to take maybe 6 tiny bites of chicken. And yes, Grandma spoon-fed every single bite. This is a typical family gathering event.

She eats bread, crackers, cookies, donuts. It is known that she pretty much will not eat any fruit or vegetable, besides maybe applesauce or french fries. I have regularly seen her take the minimum amount of food before darting from the table, leaving most of the remainder behind. She will not drink milk and only drinks water (if forced), OJ, or apple juice.

I know some kids have "phases" but this has been getting progressively worse for 2 years. I've heard that a diet of roughly 12items is disordered for children.

What is your recommendation on this? How do I put it gently?
<bot>: 4yo won't eat any fruit, veggie, milk, and is limited to maybe 1dozen food options. This is abnormal. How to approach this to hot-headed sister?