Two friends eating healthy meals

By Lauren Ehlert, RDN, LD

Have you ever noticed someone yawn and then felt an irresistible urge to yawn, too?

Something similar happens when we eat with other people; we see them take a bite of food, and we find ourselves doing so at the same rate. This is called behavioral modeling. Behavioral modeling is when someone imitates another person’s actions. We may do this on purpose or without even realizing it. We may not be able to completely avoid being influenced by other people, but if we are more aware of this tendency, we can take action to direct our own choices in ways that serve us best.

How Other People Influence Our Food Choices

We tend to be influenced by the food and drink choices of those most directly around us. Studies have found that when eating with another person, we are likely to take a bite or sip immediately after the other person. One study even found that people watching a movie were more likely to take a sip of their drink immediately after the character on screen sipped a drink. This means that we may eat and drink more food than we intend to if the people around us are eating and drinking more (1).

Some studies suggest we may choose foods and serving sizes based on what we think is “normal” in a particular situation. The perception of a food being normal is an even stronger influence on choices than the perception of a food being healthy.

  • For example, in one study, people who were told that eating vegetables was normal increased their consumption of vegetables more than people who were told that vegetables were healthy.
  • We also tend to choose serving sizes based on our beliefs about how much is normal to eat. For example, one study found that people were likely to eat significantly more cookies if they were told that other people in the same study ate a lot of cookies(3). 

Our surroundings matter in our food choices, too. We are more likely to copy the eating behavior of our companions in settings where we are less sure of how much is “normal” to eat.

  • For example, we are more likely to copy how much our peers eat in an unstructured setting like a happy hour with appetizers, or while watching a movie with snacks, than we are at a more structured meal like lunch or dinner (3).

Researchers think we imitate other people’s food choices because we feel that it builds a sense of connectedness with the other people, or because we want them to like us (1). This may be beneficial in situations where the people we admire are making healthy choices. Recently, more than one celebrity athlete has made worldwide headlines by publicly pushing aside soda or beer in favor of water (2). 

What do we do when the people around us are not making the healthiest choice?

Now that we know some factors that influence our choices, we can take action to own our food behaviors. Here’s a few steps to help you get started.

Remember that “normal” is just a setting on the dryer.

This is an old saying that still rings true. Just because we think “everyone else is doing it” does not mean that we need to do it, too.

Slow down.

Pause before making a food choice to ask yourself if you are choosing a food because it aligns with your goals or because someone else is eating it.

Surround yourself with healthier choices.

If your snacks are veggies and shrimp cocktail, it will not matter if you unwittingly take a bite at the same time as your friend, compared to if your snacks are cookies or other treats.

Own your “why.”

The other people in your social circle may not have the same goals as you, and that is ok! Keep something near you in your daily life that reminds of why your health goals are important to you.

Be a good influence for someone else.

Your healthy choice may be supportive to someone else who has a health goal, too.

As social beings, we are influenced by other people all the time. As we become more aware of how our social situations can influence our behavior, we can become more able to make choices that support our goals. 


  1. Hermans RCJ, Lichtwarck-Aschoff A, Bevelander KE, Herman CP, Larsen JK, Engels RCME (2012) Mimicry of Food Intake: The Dynamic Interplay between Eating Companions. PLoS ONE 7(2): e31027.
  2. Popken, B & Suliman, A. June 16, 2021. Beverage makers mocked after soccer stars Ronaldo and Pogba Snub drinks. NBC News.
  3. Robinson, E., Blissett, J., & Higgs, S. (2013). Social influences on eating: Implications for nutritional interventions. Nutrition Research Reviews, 26(2), 166-176. doi:10.1017/S0954422413000127