Test your food intelligence

Welcome! You are about to take a test on Lab in the Wild.

How good is your nutrition gut? Can you tell just by looking at a meal whether it is a significant source of protein, fat, or carbohydrates? Do you have a strong sense as to what makes for a healthy meal?

Find out for yourself and compare your performance to others!

The test typically takes 10 minutes to complete.

24607 people have completed this test so far.

This study requires a laptop or a tablet. It will not work on a phone. The test may also not work properly on older versions of Internet Explorer. We apologize for not being able to support all browsers.


Please tell us a little bit about yourself. Why?

These questions are optional, but if you could answer at least the first four, that would really help us.

Have you taken this test before? (important)

How old are you? (important)

Compared to your family and friends,
how knowledgeable are you about nutrition? (important)

What is your gender? (important)

How often do you use a computer?

What is the highest level of education you have received or are pursuing?

In what country did you live most of your childhood?

In what country have you spent most of the past five years?

How do you describe yourself?

I would prefer complex to simple problems

I find satisfaction in deliberating hard and for long hours

Thinking is not my idea of fun

I would rather do something that requires little thought than something that is sure to challenge my thinking abilities



You will be presented with pairs of photographs of meals. For each, we will ask you a nutrition-related question like this:

example of a question you will be asked in this test

Pay attention to the description below each image! It is often hard to see all the ingredients in the photograph. The descriptions will help you figure out what the main ingredients of the meal are.

Your job is to answer the questions as accurately as possible. For some of them (but not all), we will give you immediate feedback on your answer.

Question out of

Question goes here
(Assume equal portion sizes)

I am confident this is the right answer

Move the slider to indicate your answer

I am confident this is the right answer

Please refer to the meals by their descriptions, rather than locations (right/left) as those can change.

Feedback goes here

This is what other participants thought:
% voted for this one
% voted for this one



How do you feel?

Select one or two emotions that best describe how you are feeling (optional).


Thank you for your participation!

Before we continue to the results, please answer the following two questions:

Did you encounter any technical difficulties or interruptions during this study?  

Did you cheat or in any way provide false information? If yes, how?  

Do you have any comments for the researcher? Questions, Suggestions, or Concerns?

Press and hold to speak your comment.

Write your comment


Thank you! Here are your results

According to our expert nutritionist, you got questions correct. Others, on average, got questions correct.

Here are your results presented separately for each macronutrient:


Enjoyed this study?

If so...

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Multitasking Test

How well can you multitask? Compare yourself to others by taking this test!
The test typically takes 10 minutes. Try it!


If you have any additional thoughts you'd like to share about this test, please email kgajos@eecs.harvard.edu.