Quiz Yourself

Eating for the Planet Quiz

Eating for the Planet Quiz

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Which food has the highest protein content per cooked cup?

Burlap sacks of beans and lentils
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The correct answer is lentils. For every cup of boiled lentils you eat, you get 17.9 grams of protein. And it can take as little as 15 minutes to cook them!

Which of these foods typically produces the most amount of greenhouse gas emissions?

Smoke rising from factory smokestacks
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The correct answer is beef. For every kilogram of beef produced, 99.48 kilograms of greenhouse gasses are produced. In contrast, other protein sources like tofu produce only 3.16 kg of greenhouse gases per kilogram.

Approximately what percentage of global deforestation is caused by clearing forests for farming and grazing?

Tree stump in a clear-cut forest
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The correct answer is nearly 90%. Agriculture and livestock require a lot of land, so forests are often completely demolished for agricultural expansion. Globally, more than half of razed forests are used for cropland while livestock area accounts for the other 40%.

Which plant-based food is particularly rich in omega-3 fatty acids?

Roasted potatoes on white rice
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The correct answer is chia seeds. Omega-3 fats, commonly found in fish, reduce heart disease risk, lower inflammation, and support brain health. One of the best plant-based sources of omega-3 fatty acids are chia seeds which contain 5,050 milligrams per 28 gram serving.

Which food is a good plant-based source of both protein and fiber?

Spoons of seeds, oats and rice
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The correct answer is chickpeas. Just one serving of chickpeas packs 13 grams of gut-friendly fiber and 15 grams of essential proteins. Adding a cup of chickpeas in hummus, roasted, smashed, or in salads will fill you up, support digestion, and help balance your blood sugar.

Which plant-based food is considered a complete protein, meaning it provides all the essential building blocks of protein your body needs?

DNA double helix
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The correct answer is soybeans. Found in tofu, tempeh, and edamame, soybeans contain all nine essential amino acids your body needs.

Which food requires the most water to produce?

Tomatoes and potatoes
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The correct answer is beef. Among these choices, beef generally has the largest water footprint, since water goes into growing feed, keeping animals hydrated, and production. Choosing protein sources like lentils can require substantially less water.

Which of these foods is technically a seed, even though it’s commonly eaten like a grain?

Jars of seeds, oats and nuts
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The correct answer is quinoa. Although it’s cooked and eaten like a grain, quinoa is actually a seed. It’s also a nutritious plant food that provides protein and fiber, and minerals like iron and magnesium.

Eating for the Planet
Food Explorer

Seedling sprouting in soil

You’re just beginning to discover how what we eat connects to our health and the health of our planet. There’s plenty to explore - from plant-based nutrition to the land, water, and resources needed to produce our food. Keep growing your knowledge and discovering how what’s on our plates can make a difference, and you’ll be ready to become a Food Scout.

Healthy People is about making sure the food we eat supports our health - and the health of the planet.. What we eat, what’s in our food, and whether healthy options are accessible and affordable all shape our well-being. From eating more plant-based and minimally processed foods and reducing our reliance on animal agriculture to reducing exposure to harmful chemicals and plastics, building a healthier food system means making it easier for everyone to choose food that nourishes people without harming the planet. Read more about Healthy People and Earth Day 2027.
Food Scout

Hand holding green tomatoes on the vine

You’re connecting the dots between what’s on our plates and the world around us. You know that eating more plant-based foods - and reducing our reliance on animal agriculture - can benefit our health while reducing pressures on land, water, and the climate. Keep exploring - there’s even more to discover about the impacts of our food choices, and you’ll be ready to become a Food Expert.

Healthy People is about making sure the food we eat supports our health - and the health of the planet.. What we eat, what’s in our food, and whether healthy options are accessible and affordable all shape our well-being. From eating more plant-based and minimally processed foods and reducing our reliance on animal agriculture to reducing exposure to harmful chemicals and plastics, building a healthier food system means making it easier for everyone to choose food that nourishes people without harming the planet. Read more about Healthy People and Earth Day 2027.
Food Expert

Variety of fresh vegetables

You’ve got a serious appetite for food-system knowledge! From nutrition and plant-based foods to water use, emissions, deforestation and the impacts of animal agriculture, you understand that what we eat impacts far beyond our plates. You see the bigger picture and the important role that shifting toward more plant-based foods can play in creating a healthier, more sustainable future for people and the planet.

Healthy People is about making sure the food we eat supports our health - and the health of the planet.. What we eat, what’s in our food, and whether healthy options are accessible and affordable all shape our well-being. From eating more plant-based and minimally processed foods and reducing our reliance on animal agriculture to reducing exposure to harmful chemicals and plastics, building a healthier food system means making it easier for everyone to choose food that nourishes people without harming the planet. Read more about Healthy People and Earth Day 2027.