"I've slowly gone back, later on in life, to fish and then chicken and then, last year, red meat"

Sarah Chalke's quote is likely referring to her dietary practices. It appears that she has been slowly transitioning back to eating meat, beginning with fish, then chicken, and lastly red meat. This might be due to a range of factors, such as health, personal choice, and even environmental issues. It is possible that she has actually been slowly transitioning back to consuming meat due to a change in her lifestyle or diet. Perhaps she has been trying to include more protein into her diet plan, or possibly she has been trying to decrease her intake of processed foods. Whatever the reason, it is clear that Sarah Chalke has actually been gradually transitioning back to consuming meat, and it appears that she is now comfortable with consuming red meat.