LPT: check the ingredient list for chicken, as it's common for salt water, binding agents, and other additives to be injected during processing . This can increase the chicken's sell weight by up to 30%, and can increase sodium content from 45-70mg to 200-500mg per serving.
Under current USDA regulations, plumped chicken may still carry an “All-Natural” or “100% Natural” label. This is why it's important to check the ingredient list.