Absolutely! I used to work at an assisted living center, and part of the benefit was a free meal every day at work. But after a few months of working there, my joints started to hurt. My job was very physical, and I realized that if my condition continued to decline, I would soon be crippled. I knew the only change I had made was my diet. And knowing the people who worked in the kitchen I quickly realized they were using the cheapest oils they could buy. I stopped eating there and began to eat using bringing my food from home and the joint pain went away. I felt so bad for those residents! They must have felt horrible!