She is at an awkward age, and I agree with giving it to her but I would explain and respectfully request that relatives do not give her anything but "good" bread, explaining that given that is all she wants to eat it needs to be as nutritional as possible. Hopefully they will understand and respect your wishes. You may have to buy it first and pop it in their freezers though to make it easy and accessible. Maybe a sprouted one? or the like. This phase will pass. My Granddaughter has just been through it, and yes, she would starve and scream rather than eat what you wanted her to eat. She will eat anything now though. Phew!!!! she is now 3.
Primal, minus eggs, dairy and a myriad of other allergens.