4. When you do eat out, try to eat at restaurants that follow the same rules. Ideally, you should eat at restaurants that are creating all of their items from completely unprocessed foods. Lots and lots of restaurants do. Follow Rule 1 even while out to dinner. Some processing is going to be fine, but try to keep it to a minimum.

5. Drink mostly water, but some alcohol, coffee and other beverages are fine. As I’ve pointed out before, you can find a study to show that everything either prevents or causes cancer — alcohol and coffee included. But my take is that the preponderance of evidence supports the inclusion of a moderate consumption of most beverages.

6. Treat all beverages with calories in them as you would alcohol. This includes every drink with calories, including milk. They’re fine in moderation, but keep them to a minimum. You can have them because you like them, but you shouldn’t consume them as if you need them.

7. Eat with other people, especially people you care about, as often as possible. This has benefits even outside those of nutrition. It will make you more likely to cook. It will most likely make you eat more slowly. It will also make you happy.

I’ve avoided treating any food like the devil. Many nutrition experts do, and it may turn out they’re right, but at this point I think the jury is still out. I’ve therefore tried not to tell you to avoid anything completely. My experience tells me that total abstinence rarely works, although anecdotes exist to support that practice. I think you’ll find that many other diets and recommendations work under these rules. These are much more flexible and, I hope, reasonable than what some might prescribe.

All of these rules are subtly trying to get you to be more conscious of what you’re eating. It’s far too easy these days to consume more than you think you are, or more than you really need, especially when eating out. I’ve found that it’s impossible to tell any one person how much they should be eating. People have varying requirements, and it’s important for all of them to listen to their bodies to know when they should eat, and when they should stop.