Institute of Medicine. Dietary reference intakes for calcium and vitamin D. Washington, DC: The National Academies Press. Calcium supplements cause few, if any, side effects. But side effects can sometimes occur, including gas, constipation and bloating. In general, calcium carbonate is the most constipating. You may need to try a few different brands or types of calcium supplements to find one that you tolerate the best. What prescriptions you take Calcium is an essential nutrient for supporting bone development and growth in children. It is recommend that children meet their calcium needs through food and drink, including milk, yogurt, and other dairy products, as well as fortified grains and beverages. However, if your child has a limited diet and you are concerned they are not getting enough calcium, you may want to speak to your pediatrician about supplementation. About ConsumerLab.com. ConsumerLab.com. https://www.consumerlab.com/aboutcl.asp. Accessed Oct. 18, 2020. Those who get enough calcium from food: Again, a supplement would be to complement dietary calcium intake, so it’s important that your total intake does not go over the upper limit, which ranges from 2,000 to 3,000 milligrams per day, depending on your age. Over supplementation of calcium may cause constipation, lead to kidney stones or kidney damage, and even contribute to cardiac and respiratory failure.

Binding to other orally administered medications: Calcium Resonium may bind to orally administered medications, which could decrease their gastrointestinal absorption and efficacy. Avoid co-administration of Calcium Resonium with other orally administered medications. Administer Calcium Resonium at least 3 hours before or 3 hours after other oral medications. For patients with gastroparesis, a 6-hour separation should be considered (see Sections 4.2 & 4.5). Bolland, MJ, et. al. Calcium supplements with or without vitamin D and risk of cardiovascular events: reanalysis of the women's health initiative limited access dataset and meta-analysis. BMJ. 2011 Apr 19;342:d2040. doi:10.1136/bmj.d2040 Orally administered medications: Calcium Resonium has the potential to bind to other orally administered medications. Binding of Calcium Resonium to other oral medications could cause decrease in their gastrointestinal absorption and efficacy. Dosing separation of Calcium Resonium from other orally administered medications is recommended (see sections 4.2 & 4.4).Calcium is an electrolyte which controls fluid concentration in your dog’s cells. The blood detects calcium levels. A healthy dog is able to control their blood calcium levels. This depends on how much calcium-rich food is in their diet. Vitamin D is also a helpful aid because it promotes calcium absorption. People with lactose intolerance or a dairy allergy: Avoiding dairy products can make it challenging to get enough calcium. Taking a supplement can help boost levels. Calcium citrate does not depend on stomach acid for absorption. As a result, it can be more suitable for people with: Craig WJ, Mangels AR, Fresán U et al. The Safe and Effective Use of Plant-Based Diets with Guidelines for Health Professionals. Nutrients. 2021 Nov 19;13(11):4144. doi: 10.3390/nu13114144. PMID: 34836399; PMCID: PMC8623061. This supplement contains calcium carbonate derived from eggshells, as well as several other nutrients to support bone health, including vitamins D and K ( 7).

Myung SK, Kim HB, Lee YJ, Choi YJ, Oh SW. Calcium supplements and risk of cardiovascular disease: A meta-analysis of clinical trials. Nutrients. 2021;13(2):368. Published 2021 Jan 26. doi:10.3390/nu13020368 Supplements that are third-party tested are sent to a lab where they are tested to ensure they contain what they say they contain and are not contaminated with specific high-risk, common contaminants. However, it’s important to note: Other risks: In the event of clinically significant constipation, treatment should be discontinued until normal bowel movement has resumed. Magnesium-containing laxatives should not be used (see section 4.5 Interactions).

Lifestream Natural Calcium has a unique porous 'honeycomb-like' structure which works particularly well in the digestive system and gives it extraordinary absorption properties. The molecules in Lifestream Natural Calcium have a very large surface area which allows faster solubilisation, more reactive surfaces and rapid ionisation of the calcium giving superior availability to the body. It also naturally contains co-factors magnesium, boron, selenium, phosphorus, zinc, copper and iodine in a perfect natural mix from Mother Nature. Heaney RP, Dowell MS, Bierman J, Hale CA, & Bendich A. Absorbability and cost effectiveness in calcium supplementation. Journal of the American College of Nutrition, 20:3, 239-246, DOI: 10.1080/07315724.2001.10719038 The Recommended Dietary Allowance (RDA) for pregnant women nineteen and older is 1,000 milligrams per day, from either food or supplements. It is best to try and meet the RDA through foods, including milk and diary products like milk, cheese, and yogurt, as well as fortified foods like cereals, breads, and plant-based milks. There are also some plant-based sources with smaller amounts including leafy greens, beans, nuts and seeds. Calcium is the most abundant mineral in the body, and many people in the US don't consume enough of it. Calcium is "most known for its role in bone health, but it's also essential for blood clotting and the proper functioning of the muscles, heart and nerves,” says Anya Rosen, a registered dietitian and virtual functional medicine practitioner. Lappe J, Watson P, Travers-Gustafson D, et al. Effect of vitamin D and calcium supplementation on cancer incidence in older women: A randomized clinical trial. JAMA. 2017;317(12):1234-1243. doi:10.1001/jama.2017.2115

Basically, whenever your bearded dragons system is calcium deficient, it will be forced to extract calcium from its bones to use as its primary source of calcium. Li K., Wang X.F., Li D.Y., Chen Y.C., Zhao L.J., Liu X.G., Guo Y.F., Shen J., Lin X., Deng J., et al. The good, the bad, and the ugly of calcium supplementation: A review of calcium intake on human health. Clin. Interv. Aging. 2018;13:2443–2452. doi: 10.2147/CIA.S157523 But if you find you are regularly taking calcium carbonate to relieve digestive issues, a doctor can help you investigate the root cause of your concerns. Chronic antacid use or misuse may lead to negative health effects.

Gastrointestinal stenosis and ischaemia: Gastrointestinal stenosis, intestinal ischemia and its complications (necrosis and perforation), some of them fatal, were reported in patients treated with polystyrene sulfonate alone or in combination with sorbitol. Concomitant use of Sorbitol with calcium polystyrene sulfonate is not recommended (see Section 4.5). The recommend daily intake of calcium in the UK for adults is 700mg. Most people will get all they need through their meals; however, some may need to take a supplement. Palmer BF, Clegg DJ. Diagnosis and treatment of hyperkalemia. Cleve Clin J Med. 2017 Dec;84(12):934-942. doi:10.3949/ccjm.84a.17056 When choosing a supplement, it’s important to obtain it from a trusted source that upholds standards of efficacy and purity, and calcium is no exception. One of the biggest concerns with calcium supplements is related to the quantity of the mineral actually contained in the pill or powder. A product label may say it contains a certain amount of calcium, but in fact it falls short. Another concern is that many sources of calcium also contain heavy metals such as lead, arsenic, and cadmium. Choosing your supplement from a trusted source is imperative, especially for women who are pregnant. Form

Orchard TS, Larson JC, Alghothani N, et al. Magnesium intake, bone mineral density, and fractures: Results from the Women's Health Initiative Observational Study. Am J Clin Nutr. 2014;99(4):926-933. doi:10.3945/ajcn.113.067488

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Calcium Fact Sheet for Health Professionals. National Institutes of Health Office of Dietary Supplements. Remember, the idea is to meet the RDA for all nutrients with a food first approach, and supplement as needed. Excess of any one nutrient through supplementation can disrupt your body's inherent ability to maintain optimal homeostasis of vitamins and minerals in the body. Factors such as age, diet, and underlying medical conditions can affect how much calcium a person’s body absorbs. Persona provides personalized vitamins and minerals via subscription. Customers take a short online assessment to discuss their lifestyle, diet, and other factors. A doctor-designed algorithm then creates a personal supplement plan with vitamin recommendations.