From what I’ve learned, Calcium supplements are not absorbed well. I’m currently researching a calcium supplement from algae called Algaecal. But also add calcium from food sources daily to meet the daily requirement. Food sources include: heavy cream( if you add creamers to your coffee), chia seed pudding, cheddar cheese, avocado, eggs, broccoli rabe, amaranth, ricotta cheese, cooked spinach or kale, sweet potatoes, almonds, almond milk, oat milk, sesame seeds, canned salmon with bones, sardines with bones, or anchovies with bones. The bones are very soft. It takes discipline to add these food sources daily. What is helping me is having a drawer with the no refrigerator needed items all together, placing refrigerator needed items all together. That way it’s “not out of sight, out of mind”.