Did your doctor instruct you to take that much calcium? If not, I would ask how much you should take as everyone’s health issues are different. According to NIH table below, if you are a female, age 51-70, 1200 mg of calcium. This includes food. These are just guidelines so please follow your doctor’s advice.

Table 1: Recommended Dietary Allowances (RDAs) for Calcium [1]
Age Male Female Pregnant Lactating
0–6 months* 200 mg 200 mg
7–12 months* 260 mg 260 mg
1–3 years 700 mg 700 mg
4–8 years 1,000 mg 1,000 mg
9–13 years 1,300 mg 1,300 mg
14–18 years 1,300 mg 1,300 mg 1,300 mg 1,300 mg
19–50 years 1,000 mg 1,000 mg 1,000 mg 1,000 mg
51–70 years 1,000 mg 1,200 mg
>70+ years 1,200 mg 1,200 mg

This is the site the table above came from. Sorry it didn’t copy that well. https://ods.od.nih.gov/factsheets/Calcium-HealthProfessional/

I’ve also read it may be better to take only around 500 mg at a time for better absorption but check with your doc about that too. Also count the amount of calcium you get with food. That all goes towards your total intake.

I’m hoping that someone that knows more than I do will chime in here. It’s the holidays so there may not be as many people on the forum.