Understanding Why You Feel Weird After Taking Calcium Tablets
Calcium is a vital mineral for bone health, nerve function, and muscle contraction. While many people get enough calcium through their diet from sources like dairy products and leafy greens, others turn to supplements to help ensure adequate intake. However, it's not uncommon to experience unusual symptoms or feel 'weird' after taking them. These feelings can range from mild gastrointestinal discomfort to more concerning symptoms related to high calcium levels or medication interactions.
Common and Mild Side Effects
The most frequent reasons for feeling unwell after taking calcium supplements are related to the digestive system. These side effects are generally not serious but can be uncomfortable.
- Gas, Bloating, and Constipation: These are some of the most common complaints. Calcium can slow down the movement of your gut and affect fluid levels in your intestines, leading to constipation. Gas and bloating may also occur as your body processes the supplement. Calcium carbonate is more frequently associated with these side effects than calcium citrate.
- Upset Stomach and Nausea: Some individuals report an upset stomach or nausea after taking calcium. Taking the supplement with food can often help alleviate this symptom.
- Metallic Taste or Dry Mouth: Though less common, some people may experience a metallic taste or dry mouth after taking calcium carbonate supplements.
The Role of Different Calcium Types
The form of calcium you take plays a significant role in how you feel. The two most common types are calcium carbonate and calcium citrate.
- Calcium Carbonate: This form is common and can be less expensive than other forms. It requires stomach acid for absorption, which is why it is often recommended to take it with food. It is also the type most likely to cause gas, bloating, and constipation.
- Calcium Citrate: This form is more easily absorbed and can often be taken with or without food, making it a potential option for older adults or those with low stomach acid. While it can still cause side effects, it is generally considered gentler on the stomach than calcium carbonate. However, it contains less elemental calcium by weight compared to calcium carbonate.
| Feature | Calcium Carbonate | Calcium Citrate |
|---|---|---|
| Requires Stomach Acid | Yes | No |
| Best Taken With Food | Yes | Can be taken with or without food |
| Common Side Effects | More likely to cause gas, bloating, constipation | Less likely to cause GI side effects |
| Cost | Generally less expensive | Generally more expensive |
More Serious Symptoms: Hypercalcemia
Feeling 'weird' can sometimes be a sign of a more serious condition called hypercalcemia, which is an abnormally high level of calcium in the blood. While rare from supplements alone when taken as recommended, taking excessively high amounts over time can contribute to this condition.
Symptoms of mild to moderate hypercalcemia can be subtle and may include:
- Fatigue, confusion, or drowsiness
- Increased thirst and frequent urination
- Nausea, stomach pain, and constipation
- Muscle weakness and bone pain
- Headaches
Severe hypercalcemia is a serious medical issue that can affect the heart and brain, potentially leading to heart rhythm problems, confusion, and even coma. If you experience symptoms like a racing heart, dizziness, or significant confusion, you should stop taking the supplements and contact a healthcare provider immediately.
Medication Interactions
Calcium supplements can interfere with the absorption and effectiveness of various prescription medications. This interaction can lead to you feeling unwell or experiencing a return of symptoms the other medication was treating. It's crucial to space out your calcium dose from other drugs as advised by a healthcare professional.
Key interactions can include:
- Thyroid Hormones (e.g., Levothyroxine): Calcium can reduce the absorption of thyroid medication. A healthcare provider can recommend the appropriate timing for taking these medications and calcium supplements.
- Certain Antibiotics (Tetracyclines and Fluoroquinolones): Calcium can bind to these antibiotics, making them less effective. A healthcare provider can recommend the appropriate timing for taking these medications and calcium supplements.
- Bisphosphonates: Used for osteoporosis, these drugs' absorption is reduced by calcium. A healthcare provider can recommend the appropriate timing for taking these medications and calcium supplements.
- Thiazide Diuretics: These can increase calcium levels in the body, potentially raising the risk of hypercalcemia when taken with supplements.
How to Minimize Side Effects
If you feel weird after taking calcium tablets, there are several strategies you can discuss with a healthcare provider:
- Split Your Dose: Taking smaller amounts of calcium at one time may improve absorption and reduce digestive side effects.
- Take with Food: Taking calcium carbonate with a meal can aid absorption and may reduce stomach upset.
- Stay Hydrated: Drinking plenty of fluids can help prevent constipation.
- Increase Fiber: Eating high-fiber foods can also help with constipation.
- Start Slowly: When beginning a new supplement, starting with a smaller amount and gradually increasing it may help your body adjust.
- Switch Forms: If calcium carbonate gives you trouble, try switching to calcium citrate.
- Add Vitamin D: Your body needs vitamin D to absorb calcium effectively. Many supplements come with vitamin D included or can be taken alongside a vitamin D supplement.
Conclusion
Feeling weird after taking calcium tablets is a common experience, often stemming from manageable digestive side effects related to the type and timing of the supplement. By choosing the right form of calcium for your needs, taking it as recommended, and being mindful of medication interactions, you can often alleviate these feelings. However, it's important to be aware of the symptoms of more serious conditions like hypercalcemia. Always consult with a healthcare provider to determine the right supplement approach for you and to rule out any underlying issues. [https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/calcium-supplements/art-20047097]
