Every Meal Out Adds 134 Calories — and Home Cooks Eat Less Even at Restaurants

Before you look for a new diet, consider a simpler question: how many of your weekly meals were cooked in your own home?

The numbers

An analysis of US National Health and Nutrition Examination Survey data found that each meal or snack eaten away from home adds an average of 134 calories that day, compared with the same meal prepared at home^[1]. In detail: lunch out adds 158 calories, and dinner out adds 144^[1].

And the more striking finding

People who cook at home regularly consume fewer calories even when eating at restaurants^[1] — most likely because someone who cooks knows what a normal portion looks like and can identify what's in the dish.

And not only calories

Johns Hopkins research found that people who cook most of their meals at home consume fewer carbohydrates, less sugar and less fat — even when not trying to lose weight^[2], with lower consumption of fast food, frozen meals and ready-to-eat products^[2].

And most importantly for the budget: home-cooked meals were associated with a diet lower in calories, sugar and fat without higher monthly food expenses^[3].

In our own context

This intersects directly with a troubling figure: 87.5% of a Saudi sample use delivery apps, and 86.6% of them order fast food (details). The home-cooked meal is retreating fast in our society.

A realistic — not perfect — plan

1. Start with one meal: replacing one work lunch a week with a home meal ≈ 8,000 calories a year.
2. Cook once, eat twice: double the quantity and save half for the next day.
3. You don't need skill: grilled chicken + rice + salad is simpler than any Instagram recipe.
4. Cooking teaches you portions — the biggest source of calorie estimation error (why).