Tips On Taking Calcium If You're Underweight

People who are underweight may lack essential vitamins and minerals such as calcium. Calcium is needed in the body for the growth and maintenance of healthy bones. Without adequate amounts of calcium, the risk of fractures and osteoporosis increases. Underweight people may be more susceptible to inadequate calcium levels due to poor food and caloric intake, leading to malnutrition. An underweight person should increase her calcium intakes under a doctor's supervision through calcium supplements and food sources.

Absorption

It is important to take calcium supplements at the appropriate times to ensure optimal absorption rates. According to MayoClinic.com, calcium is best absorbed when it is taken in smaller doses of 500 to 600 mg or less at a time. If your daily dose is 1,000 mg or more of calcium, consider splitting it up into two or more doses throughout the day. Always read the labels of supplements to determine how much calcium is in one tablet or pill.

With Food

Many calcium supplements contain calcium carbonate or calcium citrate. Check the product label to identify ingredients. Calcium carbonate can be hard for the stomach to absorb, leading to calcium deficiency or digestive upset such as cramping and nausea. Avoid these risks by taking your supplement with food as eating produces acids in the stomach that help absorb the carbonate. Calcium citrate may be taken with or without food.

Medications

Many medications, particularly prescribed medications, may disrupt the absorption of calcium in the body. People who are underweight for a medical reason may be taking other medications including antibiotics, thyroid medication or antidepressants. Furthermore, they may be supplementing with additional vitamin and mineral supplements. It is imperative that you speak with a physician to determine the effect other drugs may have on calcium supplements. Typically, you avoid any interactions by timing your dosages several hours apart.

Food Sources

Calcium is also present in many foods. While it is typically recommended to rely on food sources as your primary form of nutrient intake, an underweight person may need the additional benefit of supplements while he works on improving his diet. Eating foods high in calcium also provides other essential nutrients such as protein and healthy fats, in addition to other vitamins and minerals. Healthy choices to implement into your diet include milk, cheese, yogurt, dark leafy green vegetables, canned salmon, sardines and fortified breads or cereals.