I am going to be pretty unpopular for saying this, but the kind of calcium that you get from dairy is hard for your body to digest and use.
I think you get a more processable calcium from green leafy vegetables combined with a citrus.
Now I know I do not sound at all like a doctor, but I am paraphrasing what has been said to me over the years by doctors when relatives of mine have expressed concern over my diet, I can't say I listened closely to the reasoning behind why milk isn't that helpful, but I did follow the advice and I'm pretty healthy.
It's true. You also can't absorb calcium without vitamin D3. We get vitamin D3 from sunlight but because of the low levels of sunlight here most people are deficient. You can take a vitamin D3 supplement to help.
If you want to absorb more calcium you should also up your levels of magnesium as it needs to be present for calcium absorbtion. Low salt diets can help bone repair too. The more salt in your diet, the more calcium your body pulls from your bones to compensate.
It's true. You also can't absorb calcium without vitamin D3. We get vitamin D3 from sunlight but because of the low levels of sunlight here most people are deficient. You can take a vitamin D3 supplement to help.
If you want to absorb more calcium you should also up your levels of magnesium as it needs to be present for calcium absorbtion. Low salt diets can help bone repair too. The more salt in your diet, the more calcium your body pulls from your bones to compensate.