Let me start by saying - I've tried MANY calcium supplements, but Caltrate 600+D3 stands out. The fact that it contains the highest vitamin D3 per tablet among leading brands (as they claim) makes a noticeable difference in absorption. No more chalky aftertaste like other supplements!

As someone who's had dental bone loss issues (similar to one reviewer's experience), I can confirm this helped my recovery. My dentist actually noticed improved bone density after 6 months of consistent use. The knee cracking reduction? Bonus benefit I didn't expect!

The tablet size is manageable - not too horse-pill sized like some competitors. Though fair warning: it's not gummy version (despite what one reviewer mentioned - must be confusing it with another product). Take with food to avoid slight stomach discomfort.

What doctors aren't telling you: The expiration dates can be tight sometimes (got a batch expiring in 5 months). Always check before purchasing! Also, while many see results in months, for serious conditions like osteoporosis, expect to wait until your next bone scan for concrete proof.

Pro tip: Amazon often has better expiration dates than local pharmacies in my experience. And yes - at 60+, this seems particularly effective according to multiple family members' experiences.