Is it just me or has salt become less salty?

I’ve been using the same salt for years and it seems I have to add more than usual these days to achieve the same taste in my food. I thought it was just me but my husband and daughter both keep adding salt to my food even though I am still using the same amount.

Have manufactures reduced the amount of sodium in salt?
Or have our taste buds simply changed. It could be a summer thing. Dehydration makes us crave more salt to stay hydrated.