There are some differences between the red and green cans of Chia Tai Lunch Meat in terms of nutritional value and taste.

1. Nutritional Value: The red can of Chia Tai Lunch Meat has a higher percentage of lean meat and less fat, which makes it more nutritious. The green can may have slightly less lean meat and fat than the red can.

2. Taste: Due to the high percentage of lean meat in the red can of Chia Tai Lunch Meat, it has a better texture and flavor.

Overall, the red can of Chia Tai Lunch Meat may be a bit better than the green can in terms of nutritional value and taste. But when choosing, please decide according to your needs and taste.