Are antacids with calcium a good source of calcium?
I have a few concerns about antacids being used as calcium supplements.
- An adequate supply of stomach acid (hydrochloric acid) is necessary for calcium absorption. Since the function of antacid tablets is to reduce stomach acidity, antacids could possibly reduce, rather than increase, calcium absorption.
- Magnesium and aluminum interfere with calcium absorption so calcium in antacids containing magnesium and/or aluminum is essentially useless.
- Many antacids are high in sodium and should not be used by those on a sodium-restricted diet.
- Vitamin D is necessary for absorption of calcium and the storage of calcium in bone. Antacids do not contain vitamin D.
- The cost of antacids is much higher than regular calcium supplements. Average costs for five to eight antacid tablets is up to ten times more than a comparable amount of calcium supplied by calcium supplements.
Helpful tips:
- Check the ingredients listed on Nutrition Facts Label to see if the antacid contains aluminum or magnesium.
- Calcium from antacids like TUMS is absorbed better if taken with a meal.
- Try to meet calcium requirements through food sources. If this is not possible, either because of intolerance of dairy foods or because of dietary preferences, the use of calcium supplements should be considered, either in addition to food sources or as the major source of calcium.
- Some calcium supplements are better absorbed when taken with food. For the best absorbency of calcium there is a need to space out your calcium tablets throughout the day.
- If it was not prescribed or recommended by a health care provider, follow the manufacturer's directions for use.