The Primary Active Ingredient: Calcium Citrate
At the heart of every Citracal supplement is calcium citrate. Unlike other common forms of calcium, such as calcium carbonate, calcium citrate is a salt derived from citric acid. This chemical composition is crucial for its function and effectiveness in the body.
Why Calcium Citrate is a Key Choice
Calcium citrate offers several advantages over other calcium forms, particularly for individuals with low stomach acid, a common condition that can affect calcium absorption. Here's what makes it stand out:
- Superior Solubility: Calcium citrate is highly soluble in water, meaning it dissolves more readily and doesn't require a highly acidic environment for absorption.
- Flexibility in Dosing: Because its absorption is not dependent on stomach acid, calcium citrate can be taken with or without food, offering more convenience for daily intake.
- Digestive Tolerance: It is generally gentler on the digestive system and less likely to cause side effects like gas, bloating, and constipation, which are often associated with calcium carbonate.
Additional Ingredients that Enhance Effectiveness
While calcium citrate is the primary active ingredient, Citracal supplements often contain other components to maximize benefits and ensure stability. The specific formula can vary, but here are some common additions:
Vitamin D3
This ingredient is a crucial partner to calcium. Vitamin D3 (cholecalciferol) helps the body absorb calcium from the digestive tract and incorporate it into the bones. Without sufficient vitamin D3, the body cannot effectively utilize the calcium from supplements or food.
Supporting Minerals
Some Citracal formulas, like Citracal Maximum Plus, include additional minerals that further support bone health and other bodily functions. These can include:
- Zinc: An essential mineral involved in bone formation and overall immune function.
- Copper: Plays a role in maintaining connective tissues, which are vital for strong bones.
- Manganese: Another trace mineral that is important for the body's enzyme systems, including those involved in bone development.
Binding and Coating Agents
To form the caplets and make them easier to swallow, Citracal includes a number of inactive ingredients. These are standard in many tablets and capsules and are typically safe for consumption. Examples include:
- Polyethylene Glycol: A common binder and lubricant.
- Croscarmellose Sodium: A disintegrant that helps the caplet break down in the body.
- Hydroxypropyl Methylcellulose: Part of the coating process.
- Magnesium Stearate: An anticaking agent.
Comparison of Different Citracal Formulas
Citracal is available in several different formulas, each with a slightly different composition to meet specific needs. The most notable differences involve the amount of elemental calcium and the inclusion of other minerals.
| Feature | Citracal Maximum Plus | Citracal Petites | Citracal Slow Release 1200 | 
|---|---|---|---|
| Calcium Form | Calcium Citrate | Calcium Citrate | Calcium Carbonate and Citrate | 
| Elemental Calcium | 630-650 mg per serving | 400 mg per serving | 1,200 mg per serving | 
| Vitamin D3 | 1000 IU (25 mcg) per serving | 500 IU (12.5 mcg) per serving | 1000 IU (25 mcg) per serving | 
| Additional Minerals | Zinc, Copper, Manganese | None listed | Magnesium Hydroxide | 
| Absorption Rate | Fast | Fast | Gradual (Slo-Cal Technology) | 
| Tablet Size | Larger caplets | Smaller caplets | Regular coated tablets | 
| Take With Food | Can be taken with or without food | Can be taken with or without food | Once daily, gradual release | 
A Deeper Look into Calcium Citrate's Benefits
The reason for using calcium citrate over calcium carbonate is rooted in both bioavailability and patient tolerance. While calcium carbonate contains a higher percentage of elemental calcium by weight (around 40%), its absorption is heavily reliant on the presence of stomach acid. Calcium citrate, containing about 21% elemental calcium by weight, is a more efficient choice for many. This is especially true for older adults, whose stomach acid production naturally decreases with age, or individuals on acid-reducing medications like proton pump inhibitors (PPIs). The superior absorbability helps ensure that the calcium is effectively used by the body, supporting bone density and overall skeletal health.
For more detailed information on calcium supplementation and bone health, visit the National Institutes of Health website at https://ods.od.nih.gov/factsheets/Calcium/HealthProfessional/.
Conclusion
In summary, Citracal is primarily made of calcium citrate, a highly soluble and easily absorbed form of calcium. Most formulas also include vitamin D3, a critical nutrient that enhances calcium absorption, along with other minerals like zinc, copper, and manganese in specific variations. The exact ingredient list can differ depending on the specific product, such as Citracal Maximum Plus or Citracal Petites, but the foundation is the same core combination designed to support strong, healthy bones effectively and gently on the digestive system.