06/08/2026
Before you buy that "natural" algae calcium supplement — read this first. ⚠️
Algae-based calcium is everywhere right now. Marketed as cleaner, more natural, better for you.
But here's something most labels won't tell you: some of these products contain strontium.
Now — deep breath — here's what that means:
Years ago, a drug in Europe called strontium ranelate was prescribed for osteoporosis. It was eventually pulled from the market because of increased risks of stroke and heart disease.
The strontium in US supplements is chemically different. It has NOT been linked to those same risks.
BUT — and this is the part that matters — it also has never been properly studied for safety in the US. We genuinely don't know enough.
Finding it as a hidden ingredient in your calcium? That's a risk I wouldn't take.
Stick with what's studied. Stick with what's known.