Calcium Magnesium Zinc with Vitamin D3 supplement can be beneficial for the bones, both in the defense and in construction, in the functioning of the immune system and muscles and nerves. Whereas calcium improves bones’ density and strength, magnesium makes it easier for the body to metabolize calcium and supports muscle and nerve function. Zinc also helps the immune system work properly and maintain the defense against germs and other diseases; Vitamin D3 enables the body to absorb calcium and boost the immune system.Calcium Magnesium Zinc with Vitamin D3 supplement is basically safe to the body when taken as recommended. However, side effects that are may be experienced include gastrointestinal upset, constipation or diarrhea. Always seek advice from your doctor if you notice any side effects, while using the supplement in the future.Yes, the interaction between Calcium and Magnesium is considered safe as it is recommended to take them together to enhance proper absorption and utilization of nutrients. Indeed, magnesium facilitates the absorption of calcium regarded as vital for proper muscle and nerve functioning.The recommended dosage of Calcium Magnesium supplement depend on age, gender, and such conditions as well. Supplements like glucosamine are commonly taken by individuals suffering from osteoarthritis; this and any other supplement should therefore be taken according to the recommended dosage indicated on the label and one should consult their physician before using them.The best form of Calcium and Magnesium to take depends with various factors taking into consideration. Calcium carbonate is the most commonly used calcium supplement while magnesium oxide is widely used magnesium supplement. However, other forms such as calcium citrate and magnesium glycinate is believed to be absorbed by the body better.Today you can find a great variety of Calcium supplements of high quality, and the choice will depend on the specific requirements you have. When choosing a supplement it will be useful to look for the calcium that is best assimilated in the body and should avoid exceeding the recommended dosage. It is also crucial to opt for the brand that has been tested by the third party for compliance to standard quality and purity of the product.