Don't worry about giving him a Tums a couple of times a week. He may very well need the calcium supplement and they won't hurt him. Better he have a Tums once or twice a week than MBD.
I love the tiny zucchini, wish my local store carried the baby veggies they are so tender and sweet. No baby veggies, no squash blossoms, none of that available locally. Having to get to work in the mornings is a must, you are doing a good job feeding him before you leave. I, too, would limit corn to just now and then and not as a daily or even weekly treat. Try some other fresh greens that you buy for yourself-sugar snap peas, endive, radicchio(rocket), green beans(mine love the Italian or pole beans). Otherwise you are doing great!
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