No.
Think about including these foods in your diet – they all contain calcium.
Chick peas, chia seeds, white beans, almonds/ brazil nuts, dried figs, rocket, sesame seeds, broccoli, sweet potatoes, oranges, salmon/sardines (especially canned with bones), bok choy, oranges, oats, tofu – and that is just for starters.
Not only is calcium good for bones, but also for neurotransmitter function, blood pressure, muscle function and memory.
Including a variety of foods from the list above will help ensure you get enough calcium in your day.