I never thought about eating them. If I have too much calcium, all it does is add to my bunion, LOL! (TMI!)
I started saving them, already. I crunch them up and mix them with bone meal and put 3/4 cup in each planting hole for tomatoes, peppers, zukes & cukes. No Blossom End Rot problems, ever.
My cousin told me that the “old farmer with perfect tomatoes” that he met at the country store, told him his secret is powdered milk .... either top dress, then work into the soil a bit, or use in the hole when planting. The calcium in the dried milk is in a form that the plants can readily take up (so it’s said).
When I dig the holes for my tomato plants, I save the dirt in a bucket, add the dried milk, a little Tomato Tone & milorganite, mix well, then fill the hole back in with it. I rarely have blossom end rot any more and it used to be a fairly significant problem .... my cousin said once he started using the dried milk, no blossom end rot for him either.
I think I’ll experiment next year - plant some with dried milk, some with ground egg shell powder. The dried milk can be hard to find & gets pricey.