Wrong, says The UC Berkeley Wellness Letter (March, 2011) about a one-time food splurge. One large fatty meal can have a variety of immediate adverse effects.
Fatty foods can interfere with the ability of blood vessels to dilate or expand--meaning that with exercise after such a meal, you might get angina or a heart attack. A large meal can cause your heart rate to increase because so much energy is used for digestion.
Your blood pressure and heart rate might increase.
The larger the meal, the more heartburn many people experience.
If you're young and healthy, overindulgence may not pose any problem. But if you're older and already have high cholesterol, high blood pressure, diabetes, or a pre-existing heart disease, or if you are overweight and smoke can be hazardous.
Don't arrive ravenous at parties. Eat slowly. Stay away from buffets. Stick to salads, fruits and vegetables.