Calcium and Doxycycline

I'm nearing the end of six weeks on Doxycycline, and have been very careful to avoid dairy (per instructions) due to its calcium content. I've been taking extra vitamin C, however, to help my adrenals and immune system. This morning I casually looked at the bottle and was surprised to see that each 500mg capsule has 60mg of calcium added.

I had been taking two C a day the same time as the Doxy, and now worry that doing this has ruined my absorption of the drug. And yet . . . a cup of brocolli has the same amount of calcium as the C capsule, and a can of sardines (which I eat a lot) way more calcium. Should I be concerned?

Roberts - I do think the amount is part of the equation as well. There are a lot of foods that have 'some' calcium in them.
A glass of milk has 125 mg calcium - and we are told not to take in dairy products with the Doxy.
Hard cheese has over 200 mg per serving.


Two cups of Romaine lettuce for a salad would be 30 mg.

The precautions don't usually include vegetables...so I'm thinking lower amounts are okay.

So, is a cup of broccoli at 42 grams too much? (that's the number I got when I looked it up)
I'm thinking probably not.

But the sardines - I read 382 mg calcium...definitely that could affect it.
60 mg of calcium may not be too much....(but I would separate it from now on)

All you can do is make a change from now on....no sardines and separate your multivitamin from your doxy dosage.

Thanks for responses. I'm doing very well, and for the past week or so have basically felt normal (like pre-Lyme). Though I'm done with the Doxy at the end of the week, I'm continuing with the herbal protocol for probably another couple of months (pending consultation with my LL doc). Keeping fingers crossed and thankful I got treatment so soon after my bite.