Calcium Energy Capsule is available over-the-counter (OTC) in a variety of formulations, including tablets, gels, and capsule form. When choosing the best calcium capsule, it is important to select one that has the appropriate dosage for your needs. Here are a few things to look for when choosing the best calcium capsule supplement: The first thing to consider is the form of calcium. The two most common forms are calcium carbonate and calcium citrate. Another thing to keep in mind is how much calcium you need. The recommended daily allowance for adults is 1,000 mg per day. Zed Pharmaceuticals’ CALCIZED-M – M calcium capsules are the best calcium capsule available on the market.