From the Calorie Calculator at www.caloriecount.com
1 carrot = 30 calories
1 celery = 9 calories
1 serving (38 g) T. Marzetti Low Fat Ranch Veggie Dip = 30 calories
1 medium apple = 65 calories
1 medium banana = 110 calories
1 Cliff Bar (chocolate chip) = 250 calories
1 serving of trail mix (3Tbsp) = 130 calories
Grand Total = 624 calories (if she eats everything, you don't know, you're not there. Today it's apples, tommorrow it's nothing)
According to nutrition expert Mary Hartley, RD a girl between the ages of 11 and 14 needs 2220 calories a day. This average does not take into consideration size, body composition, and physical activity on a daily basis, which is why it is important that you and your daughter consult a nutritionist to be sure she is being truly healthy. For more, see: http://caloriecount.about.com/average-calorie-needs-old-f...
The calorie count I've provided is only a rough estimate, but when you take into consideration the requirements for a child her age, short of her catching up on calorie needs at breakfast and dinner she may be setting herself up for some real health issues in the not too distant future. Heaven help her if she's heavy into sports and exercise. She could literally be living on air as it is easy to burn that many calories participating in one afterschool sports activity.
I think it's alarming so many moms are hung up on the fact that she's probably okay because she's not eating chips and pop. This kind of thinking will definitely set up a young girl for an eating disorder. The fact that she's getting defensive is a red flag. Don't just blow it off as a teen agnst thing. Explain to her if she wants to do something grown up like choose how she wants to eat, as long as she's under your roof you expect her to do it right, starting with getting guidance from an expert, not tips from girlfriends at school, or from books and magazines. She should have a real analysis done on her by a real nutritionist.
Keep in mind, eating only nuts, fruits, and veggies doesn't necessarily make one healthier or one's diet better than someone gorging on fast food and snacks. It goes beyond choosing just the right kind of foods...it's a combination of eating the right stuff in the right amounts for someone her height, weight and age. To do this right, she really should see someone who can tailor a vegetarian diet specific to her needs and lifestyle.
Most important, don't forget she's not done developing and could have some serious setbacks to her fertility and develop unwanted health issues if she's not getting a balanced diet to accommodate the needs of her growing body.