What are the side effects of diatomaceous earth?

Understanding the Side Effects of Diatomaceous Earth

While diatomaceous earth is often praised for its natural benefits—ranging from digestive support to pest control—it’s important to be aware of potential side effects, especially when used improperly. Most people taking food-grade diatomaceous earth orally don’t experience severe issues, but individual reactions can vary. If you notice any unusual symptoms after using it, the safest step is to stop and consult your doctor.

One of the more common concerns arises from inhalation. Diatomaceous earth is a fine powder, and breathing it in—even in small amounts—can irritate your nasal passages and throat. Repeated or heavy exposure may lead to coughing, wheezing, or shortness of breath, particularly in poorly ventilated areas. This is why it’s always recommended to wear a mask when handling the powder, especially during household cleaning or gardening applications.

On the skin, diatomaceous earth can have a drying effect due to its highly absorbent nature. While some use it in natural skincare routines, prolonged contact without protection may lead to irritation or dermatitis, especially for those with sensitive skin. Wearing gloves can help prevent this.

It’s also worth noting that not all diatomaceous earth is the same. Food-grade is safe for internal use in moderation, but industrial or filter-grade versions contain higher levels of crystalline silica and should never be ingested or inhaled. To avoid complications, always check the label and use only as directed.

In general, while diatomaceous earth is considered safe when used appropriately, listening to your body and respecting proper handling practices is key. If in doubt, a conversation with your healthcare provider can help ensure your use is both effective and safe.