<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress4.png">
**Question 5 of 6:** Sea to plate, which takes more ***ENERGY*** per ***CALORIE*** to produce?
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cannedtuna1.jpg" width="200" alt="canned tuna">|canned tuna]][[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/shrimp1.jpg" width="200" alt="shrimp">|shrimp]]
[[Skip the quiz - just show me all the foods|All foods]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress5.png">
**Oops!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cannedtuna3.jpg" width="200" alt="canned tuna"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/shrimp2.jpg" width="200" alt="shrimp">|Q2]]
<div class="small">It's actually shrimp, which by the time they are ready to eat, take **4 times more energy** than canned tuna per food calorie. Shrimp boats often use lots of fuel to travel long distances.</div>
<div class="next">[[Next question->Q2]]</div>(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress5.png">
**Correct!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cannedtuna2.jpg" width="200" alt="canned tuna"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/shrimp3.jpg" width="200" alt="shrimp">|Q2]]
<div class="small">By the time shrimp are ready to eat, they take **4 times more energy** than canned tuna per food calorie. Shrimp boats often use lots of fuel to travel long distances.</div>
<div class="next">[[Next question->Q2]]</div>(set: $right to $right + 1)(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress5.png">
**Question 6 of 6:** Vine/field to glass, which takes more ***ENERGY*** per ***CALORIE*** to produce?
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/beer1.jpg" width="200" alt="canned tuna">|beer]][[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/wine1.jpg" width="200" alt="wine">|wine]]
//Tip: We're comparing a pint served at a local brew pub with an Australian Shiraz.//
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<table>
<tr>
<th>Food</th>
<th>Energy Ratio In:Out</th>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/shrimp.jpg" width=75><small>shrimp</small></td>
<td>53:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cannedtuna.jpg" width=75><small>canned tuna</small></td>
<td>12:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/wine.jpg" width=75><small>wine</small></td>
<td>7.9:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orangejuice.jpg" width=75><small>orange juice</small></td>
<td>5.0:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/chicken.jpg" width=75><small>chicken</small></td>
<td>4.4:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cheese.jpg" width=75><small>cheese</small></td>
<td>4.0:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orange.jpg" width=75><small>fresh oranges</small></td>
<td>3.5:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/frenchfries.jpg" width=75><small>French fries</small></td>
<td>2.4:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/beer.jpg" width=75><small>beer</small></td>
<td>2.4:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bakedpotato.jpg" width=75><small>baked potato</small></td>
<td>1.9:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/carrots.jpg" width=75><small>carrots</small></td>
<td>1.6:1</td>
</tr>
<tr>
<td><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bread.jpg" width=75><small>wheat bread</small></td>
<td>0.9:1</td>
</tr>
</table>
<br/>
[[See all the foods|All foods]] | [[Sources|sources]] | [[Take the quiz again|init]]
**Figuring out the energy inputs in food**
Figuring out how much energy goes into making our food isn’t easy. Going on a "low energy" diet would be nearly impossible: Two apples sitting side-by-side at the supermarket could have drastically different energy footprints.
However, there a couple of ways to estimate the energy inputs of food: **looking at the economy as a whole**, and **diving deep into a single item.**
**Whole economy estimates**
Some researchers have used data on the economy at-large to estimate the energy cost of food. For example, the USDA has produced a <a href="http://www.ers.usda.gov/media/136418/err94_1_.pdf" target="_blank">report on the energy used in our the U.S. food system</a> based on energy inputs and production outputs for the agriculture sector. While this is a good way to monitor how our country’s food energy use changes over time, it doesn’t tell us much about specific products or farming practices. It tells us roughly how much energy was used to produce all domestically-raised cattle, but not the energy costs of organic versus conventional beef.
**Life cycle analysis**
Another approach is to take a specific food item - say, <a href="http://lcafood2014.org/proceedings/LCA_Food_2014_Proceedings.pdf#page=1554" target="_blank">a pint of beer sipped at a pub in Bedfordshire, England</a> - and look at the energy used every step along the way. With this approach, researchers can actually measure or survey individual energy inputs, so the results will be more precise than the whole-economy method. The results are hyper-specific, thus we don’t have them for every item in our food system. For more information about life cycle analysis, check out the <a href="http://lcafood2014.org/" target="_blank">proceedings from the most recent international conference</a>, held in 2014.
To get the most accurate picture of the energy in food, it’s best to look at both whole-economy and life cycle analysis research.
**Although our food doesn’t (yet) come with energy labels, here are some guidelines:**
* Vegetables generally use less energy than animal products. It makes sense when you think about it - animals have to eat grain, which takes energy to grow.
* Processing (canning, packaging, etc.) takes energy, so unprocessed food generally uses less energy than processed food.
* Although we don’t often think about it, a lot of the energy inputs in food <a href="http://insideenergy.org/2015/11/20/fuel-its-whats-for-dinner/" target="_blank">come from your kitchen</a> (your fridge, stove, etc.).
<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress6.png">
**Oops!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/beer2.jpg" width="200" alt="beer"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/wine2.jpg" width="200" alt="wine">|All foods]]
<div class="small">Wine actually takes more energy to make, per calorie, than beer. Nearly half of wine's energy input comes from growing grapes.</div>
<div class="next">[[**All finished! Show me all the foods...**->All foods]]</div>(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)
<div class="score">Final Score:<br />$right / $asked </div>
[[Start over->init]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress6.png">
**Correct!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/beer3.jpg" width="200" alt="beer"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/wine3.jpg" width="200" alt="wine">|All foods]]
<div class="small">Correct, wine takes more energy to make, per calorie, than beer. Nearly half of wine's energy input comes from growing grapes.</div>
(set: $right to $right + 1)(set: $asked = $asked + 1)
[[**All finished! Show me all the foods...**->All foods]]
<div class="score">Final Score:<br />$right / $asked</div>
[[Start over->init]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress2.png">
**Question 3 of 6:** Farm to plate, which takes more ***ENERGY*** per ***CALORIE*** to produce?
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bakedpotato1.jpg" width="200" alt="baked potato">|baked potato]][[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/frenchfries1.jpg" width="200" alt="french fries">|french fries]]
[[Skip the quiz - just show me all the foods|All foods]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress3.png">
**Oops!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bakedpotato3.jpg" width="200" alt="baked potato"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/frenchfries2.jpg" width="200" alt="french fries">|Q6]]
<div class="small">It's actually French fries - they have more calories and require more energy to make than baked potatoes. The oil adds a lot of calories, but also takes a lot of energy to heat. Cooking fries in larger portions brings down the energy cost per calorie.</div>
<div class="next">[[Next question->Q6]]</div>(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress3.png">
**Correct!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bakedpotato2.jpg" width="200" alt="baked potato"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/frenchfries3.jpg" width="200" alt="french fries">|Q6]]
<div class="small">French fries have more calories and require more energy to make than baked potatoes. The oil adds a lot of calories, but also takes a lot of energy to heat. Cooking fries in larger portions brings down the energy cost per calorie.</div>
<div class="next">[[Next question->Q6]]</div>(set: $right to $right + 1)(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress1.png">
**Question 2 of 6:** Farm to plate, which takes more ***ENERGY*** per ***CALORIE*** to produce?
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/chicken1.jpg" width="200" alt="chicken">|chicken]][[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/carrot1.jpg" width="200" alt="carrots">|carrots]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress2.png">
**Correct!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/chicken2.jpg" width="200" alt="chicken"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/carrot3.jpg" width="200" alt="carrots">|Q3]]
<div class="small">Chicken uses nearly **3 times as much** energy per food calorie produced. In general, animals require more energy than vegetables, because we have to take their feed into account.</div>
<div class="next">[[Next question->Q3]]</div>(set: $right to $right + 1)(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
[[Skip the quiz - just show me all the foods|All foods]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress2.png">
**Oops!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/chicken3.jpg" width="200" alt="chicken"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/carrot2.jpg" width="200" alt="carrots">|Q3]]
<div class="small">It's actually chicken - it takes nearly **3 times** as much energy in per food calorie out as carrots. In general, animals require more energy than vegetables, because we have to take their feed into account.</div>
<div class="next">[[Next question->Q3]]</div>(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress0.png">
**Question 1 of 6:** Grove to glass, which takes more ***ENERGY*** per ***CALORIE*** to produce?
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orange1.jpg" width="200" alt="fresh oranges">|fresh oranges]][[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orangejuice1.jpg" width="200" alt="orange juice">|orange juice]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress1.png">
**Oops!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orange2.jpg" width="200" alt="orange"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orangejuice2.jpg" width="200" alt="orange juice">|Q4]]
<div class="small">Orange juice actually takes more energy per calorie. Juice has to be processed - squeezed, packaged, strained - which takes more energy than simple transporting whole oranges. Also, we tend to refrigerate orange juice, whereas we leave oranges out on the counter.</div>
<div class="next">[[Next question->Q4]]</div>(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress1.png">
**Correct!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orange3.jpg" width="200" alt="orange"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/orangejuice3.jpg" width="200" alt="orange juice">|Q4]]
<div class="small">Orange juice takes more energy per calorie. Juice has to be processed - squeezed, packaged, strained - which takes more energy than simple transporting whole oranges. Also, we tend to refrigerate orange juice, whereas we leave oranges out on the counter.</div>
<div class="next">[[Next question->Q4]]</div>(set: $right to $right + 1)(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress3.png">
**Question 4 of 6:** Farm to plate, which takes more ***ENERGY*** per ***CALORIE*** to produce?
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bread1.jpg" width="200" alt="bread">|bread]][[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cheese1.jpg" width="200" alt="cheese">|cheese]]
[[Skip the quiz - just show me all the foods|All foods]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress4.png">
**Oops!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bread2.jpg" width="200" alt="bread"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cheese2.jpg" width="200" alt="cheese">|Q1]]
<div class="small">It's actually cheese, which takes about **4 times more** energy per calorie to make. One kilogram of cheese requires about 10 liters of milk.</div>
<div class="next">[[Next question->Q1]]</div>(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
[[Skip the quiz - just show me all the foods|All foods]]
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<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/progress4.png">
**Correct!**
[[<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/bread3.jpg" width="200" alt="bread"><img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/cheese3.jpg" width="200" alt="cheese">|Q1]]
<p class="small">Cheese takes about **4 times more** energy per calorie to make than bread. One kilogram of cheese requires about 10 liters of milk.</p>
<div class="next">[[Next question->Q1]]</div>(set: $right to $right + 1)(set: $asked = $asked + 1)(set: $remaining = 6 - $asked)... $remaining more questions to go.
<div class="score">Score: $right / $asked </div>
[[Skip the quiz - just show me all the foods|All foods]]
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**Which foods use the most energy, farm to fork?** In this quiz, test your knowledge.
Our food system is a giant machine that turns energy from the sun and fossil fuels into caloric energy – 30% of our fossil fuels go into making food.
//Tip: Take every step of the food system into account, from farm to factory to store to kitchen to plate.//
<p class="next">[[Start the quiz->Q5]]</p>
<img src="https://s3-us-west-2.amazonaws.com/data.insideenergy.org/images/food/all-foods.jpg" width="100%">
(set: $right to 0)
(set: $asked = 0)
(set: $remaining to 6)
[[See all the foods|All foods]] | [[Find out more|more]] | [[Take the quiz again|init]]
**Sources and Notes**
With the exception of wine and beer, energy inputs are based on the paper, <a href="http://www.sciencedirect.com/science/article/pii/S0921800902002616" target="_blank">"Food and life cycle energy inputs: consequences of diet and ways to increase efficiency,"</a> by Annika Carlsson-Kanyama, Marianne Pipping Ekstrom and Helena Shanahan, //Ecological Economics//, March 2003.
Beer energy inputs are from the article, <a href="http://lcafood2014.org/proceedings/LCA_Food_2014_Proceedings.pdf#page=1554" target="_blank">"Environmental performance of traditional beer production in a micro-brewery,"</a> by Adrian Williams and Seyoum Mekonen, <a href="http://lcafood2014.org/">//Proceedings of the 9th International Converence on Life Cycle Assessment in the Agri-Food Sector//</a>, October 2014.
Wine energy inputs are from the article <a href="http://www.sciencedirect.com/science/article/pii/S0959652614001905" target="_blank">"Environmental impacts of consumption of Australian red wine in the UK,"</a> by David Amienyo, Cacil Camilleri and Adisa Azapagic, //Journal of Cleaner Production//, June 2014.
Calorie values are from the <a href="http://ndb.nal.usda.gov/" target="_blank">USDA's National Nutrient Database for Standard Reference</a>.
You can find a full explanation of the method we used to calculate the energy inputs to outputs ratio <a href="https://github.com/InsideEnergy/Data-for-stories/tree/master/20151208-food-energy" target="_blank">on our GitHub page</a>.
This quiz was created using <a href="http://twinery.org/" target="_blank">Twine</a>.
[[Find out more about the challenges of assessing food energy inputs|more]]