Egg with watery white

[jeri40]

My husband and I have only had chickens for a little over a year. Recently we have had some eggs with very watery whites. Do we need to add something to their diet? Occasionally we get an egg with a thin shell but we do provide oyster shells. Is the watery egg safe to eat? We have eaten them but made sure they were cook throughly. Thanks for any help.

 

[new&learning]

im not sure on the watery whites but i will comment on the shells....i put out oyster shells free choice but i have found that my girls perfer the egg shells that i microwave for 1 1/2 minute (let cool) then crumble and scatter in the yard.