Eating chalky chocolate is generally safe, but the texture might not be very enjoyable. Chalky chocolate usually results from temperature changes or old storage, causing the cocoa butter to separate and form a different texture. It won’t harm you, but the taste and quality might not be as expected. I’ve encountered this before – it’s not harmful, just not as delicious. If it’s just slightly chalky, you could still eat it, but if it’s significantly affected, the taste might not be great. I’d recommend checking the best-before date and ensuring proper storage for future delicious chocolate experiences.