1. It's fascinating. 2. It's intriguing. 3. I couldn't tear myself away. 4. I couldn't put it down. (this phrase is used for en extremely interesting book) 5. I was so into it, I lost track of time. 6. It does nothing for me. 7. I was bored to tears. 8. I was bored to death. 9. I was dying of boredom. 10. It's about as exciting as watching paint dry. (= it's very boring)
Listen to your body as well as your lifestyle when planning what to eat. Some of us do better on three meals a day, others prefer smaller portions more often. Make sure you have enough time between meals to relish the feeling of hunger that accompanies an empty stomach. Routine and regularity are the key to good nutritional health.