Younger individual of your age doesn't require any
calcium supplements. You should try including calcium based diet in your daily meals( dairy items,spinach, seeds etc) and exercise regularly to improve bone density.
The best exercises for bones are walking and strength training ( either gym or playing sports)
Next Steps
Get your
vitamin D3 levels tested since it is a common deficiency which gives rise
calcium deficiency ( D3 is less then calcium is less too)
Health Tips
don't jump to taking supplement unless it is medically indicated. normal person male under the age of 50 require 1000/- mg of
calcium everyday.