Is there a way to take calcium topically? I struggle with every form of oral calcium I’ve tried. I have an incredibly sensitive gut and as a result have gotten almost 0 calcium for years. I know I need to find a way to get it in. I found one or two pure liquid calcium supplements but they have like 8-10% daily dose per serving and I’d go through a bottle every couple days to meet RDA. Let me know if you have any recommendations.