What is the recommended daily calcium supplementation for patients with poor dietary intake, and how should it be taken?

• A. 1000–1200 mg/day, divided in 2–3 doses with meals
• B. 500 mg/day taken once daily
• C. 1500 mg/day in one dose
• D. 2000 mg/day divided in 4 doses

Answer: (A)

Calcium supplementation is used to meet daily needs when dietary intake isn’t enough to support bone health. Absorption occurs best with moderate amounts at a time, and stomach acid helps absorb calcium carbonate. That’s why spreading the total daily amount into 2–3 smaller doses taken with meals gives the body a better chance to absorb what you take and minimizes GI upset.

So, aiming for about 1000–1200 mg each day, divided across meals, is the most effective approach for someone with poor dietary intake. For example, about 600 mg with breakfast and 600 mg with dinner can help you reach the goal without overwhelming absorption in a single dose.

In summary, the best practice is 1000–1200 mg daily, taken in divided doses with meals to optimize absorption and tolerability.