So sorry, I haven't lost any yet, some are 5 yrs old. I feed my whole flock the All Flock type of feed though, not feed for Layers. I provide calcium in a separate feeder if some feel the need to peck at it. I don't know if that makes a difference but as I have many roosters mixed in, I heard the Layer feeds can harm them, so everyone gets All Flock here. I still get plenty of eggs but some don't lay every single day & that's OK with me. Maybe I just got lucky with mine so far? I didn't know they may die young.I do not, personally, recommend getting ISAs, Comets, or any other red sexlink hybrid if your intention is to keep them as pets. They tend to have a very short lifespan due to their super high egg production causing problems down the line. I've not had a similar experience to what you describe because I stopped getting them years ago after I realized that almost every one of them died at 2-3 years of age from something related to egg laying, particularly internal laying and cancers of the reproductive tract, and those that made it past that age still generally died from those as well later on. It was just too heartbreaking for me to grow attached to a bird and then watch them go through that. I hope you have better luck than I did with yours as they age.