
Cheddar cheese is a semi-hard cheese that originated in the English village of Cheddar in the 11th century. It is made from cow's milk that has been matured for several months. Cheddar cheese is a protein-dense whole food, providing about 30.2 grams of protein per cup. However, it only contains 8 out of the 9 essential amino acids in sufficient amounts, falling short on lysine. This means that to get all 9 essential amino acids, cheddar cheese needs to be paired with foods that are high in lysine, such as cauliflower, carrots, watermelon, crimini mushrooms, or cranberries.
Is Cheddar Cheese a Complete Protein?
| Characteristics | Values |
|---|---|
| Protein Content | Cheddar cheese contains a moderate amount of protein, with about 30.2 grams per cup. |
| Amino Acids | Cheddar cheese is a good source of 8 out of 9 essential amino acids, but it is slightly lacking in lysine. |
| Complete Protein Pairings | To make up for the lack of lysine, cheddar cheese can be paired with foods such as cauliflower, carrots, watermelon, crimini mushrooms, or cranberries. |
| Health Benefits | Cheddar cheese is a good source of vitamin K2 and calcium, which are important for heart and bone health. It also has a lower glycemic profile compared to milk. |
| Drawbacks | Cheddar cheese has fairly high levels of saturated fat compared to other dairy products, which can increase the risk of cardiovascular disease. Some people may also be allergic or intolerant to certain proteins or lactose in cheese. |
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What You'll Learn

Cheddar cheese is a protein-dense food
However, cheddar cheese only provides 8 out of the 9 essential amino acids sufficiently. It is a little low on lysine. To have adequate amounts of all nine essential amino acids, one would need to consume 1.3 cups of cheddar cheese (167 grams) for an average person. This amounts to 24% more cheddar cheese to compensate for the lack of lysine, compared to the protein requirement alone.
Cheddar cheese can be paired with foods like cauliflower, carrots, watermelon, crimini mushrooms, or cranberries to create a complete protein profile. For example, a ratio of 2.9 tablespoons of cheddar cheese (24 grams) and 0.8 grams of cauliflower creates a complete protein profile. Similarly, any ratio of more than 0.07:1 of carrot to cheddar cheese will be complete.
Cheddar cheese is a widely popular semi-hard cheese from England, named after the English village of Cheddar, where it was first created in the 11th century. It is made from cow's milk that has been matured for several months, and it can be white, off-white, or yellow. Cheddar cheese is also a source of vitamin K2 and calcium, which are important for heart and bone health.
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It contains 8 of the 9 essential amino acids
Cheddar cheese is a protein-dense whole food that is high in leucine content. It contains a moderate amount of protein, with about 30.2 grams per cup. However, it only provides 8 of the 9 essential amino acids in sufficient amounts. Cheddar cheese is slightly lacking in lysine, one of the essential amino acids.
Essential amino acids are those that our bodies cannot produce on their own. To get adequate amounts of all nine essential amino acids from cheddar cheese alone, an average person would need to consume 1.3 cups (167 grams) of cheddar cheese. This is about 24% more cheddar cheese than the amount required to meet protein requirements.
To compensate for the lack of lysine in cheddar cheese, it can be paired with foods that are high in lysine. Examples of such foods include cauliflower, carrots, watermelon, crimini mushrooms, and cranberries. By combining cheddar cheese with these lysine-rich foods in the right ratios, a complete protein profile can be achieved.
It is worth noting that while cheddar cheese is a good source of protein, it should be consumed in moderation due to its high-fat content. Additionally, some individuals may have sensitivities or allergies to a protein called casein found in cheese, or they may be lactose intolerant, so it is important to be aware of any potential reactions.
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Lysine is the missing amino acid
Cheddar cheese is a protein-dense whole food that is high in leucine content. It is also rich in vitamin K2 and calcium. However, it is not a complete protein as it does not contain all nine essential amino acids in sufficient proportions. Lysine is the missing amino acid in cheddar cheese.
A complete protein is a protein source that contains all nine essential amino acids in adequate proportions. These are the amino acids that our bodies cannot produce on their own. While cheddar cheese contains abundant amounts of eight out of the nine essential amino acids, it falls short when it comes to lysine. This means that, on its own, cheddar cheese does not provide a complete protein profile.
Lysine is an essential amino acid, meaning our bodies cannot produce it, and it must be obtained through our diet. It is important for various bodily functions and has several health benefits. For example, lysine plays a role in calcium absorption and the formation of collagen, which is essential for maintaining healthy skin, bones, and connective tissues.
To create a complete protein profile when consuming cheddar cheese, it can be paired with foods that are high in lysine. This includes cauliflower, carrots, watermelon, crimini mushrooms, or cranberries. By combining cheddar cheese with these lysine-rich foods, you can ensure you are getting all the essential amino acids your body needs.
In summary, while cheddar cheese is a good source of protein and contains many important nutrients, it is not a complete protein due to its low levels of lysine. However, this can be easily addressed by pairing it with the right complementary foods, ensuring you get the full range of essential amino acids necessary for optimal health.
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Cheddar cheese is high in leucine content
Cheddar cheese is a protein-dense whole food. It is a rich source of leucine, an amino acid that plays a crucial role in muscle health and protein synthesis. Leucine is one of the nine essential amino acids that our body cannot produce on its own.
Leucine-enriched amino acids have been shown to maintain muscle health and promote protein anabolism. Studies have found that consuming cheddar cheese leads to a slow and sustained increase in circulating amino acids, including leucine, resulting in the activation of mTORC1 signaling. This suggests that the leucine content in cheddar cheese contributes to its ability to sustain amino acid levels and promote muscle protein synthesis.
While cheddar cheese is a good source of leucine, it is important to note that it falls short in providing sufficient amounts of another essential amino acid, lysine. To compensate for this, cheddar cheese can be paired with foods that are rich in lysine, such as cauliflower, carrots, watermelon, crimini mushrooms, or cranberries. By combining cheddar cheese with these lysine-rich foods, a complete protein profile can be achieved.
In summary, cheddar cheese is indeed high in leucine content, and this attribute contributes to its potential health benefits, particularly in supporting muscle health and protein synthesis. However, to ensure a complete protein intake, it is beneficial to pair cheddar cheese with lysine-rich foods.
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It can be paired with other foods to create a complete protein profile
Cheddar cheese is a protein-dense whole food, providing about 30.2 grams of protein per cup. It is also high in leucine content. However, it only provides 8 out of the 9 essential amino acids in sufficient amounts. Cheddar cheese is a little low on lysine.
To compensate for the lack of lysine in cheddar cheese, it can be paired with other foods that are high in lysine. This creates a complete protein profile. Here are some foods that complement cheddar cheese:
- Cauliflower: A ratio of 2.9 tablespoons of cheddar cheese (24g) and 0.8 grams of cauliflower creates a complete protein profile. Any ratio of more than 0.07:1 of cauliflower to cheddar cheese will be complete.
- Carrots: Carrots are also low in protein but high in lysine. 2.9 tablespoons of cheddar cheese (24g) and 1.7 grams of carrots make a complete amino acids profile. Any ratio of more than 0.07:1 of carrot to cheddar cheese will be complete.
- Watermelon: A ratio of 2.9 tablespoons of cheddar cheese (24g) and 0.9 teaspoons of watermelon (3g) creates a complete protein profile. The entire range to create a complete protein is ratios of 1:0.12 to 1:19 for cheddar cheese to watermelon by weight.
- Crimini mushrooms: Crimini mushrooms are a reasonable source of supplementary protein and are high in lysine. 2.9 tablespoons of cheddar cheese (24g) and 1.9ml of crimini mushrooms (1g) make a complete amino acids profile. Any ratio of more than 0.03:1 of crimini mushroom to cheddar cheese will be complete.
- Cranberries: Cranberries are low in protein but high in lysine, which complements the profile of cheddar cheese. Any ratio of more than 0.03:1 of cranberry to cheddar cheese will be complete.
These vegetarian and vegan food pairings with cheddar cheese can help create a complete protein profile, providing all the essential amino acids that our body cannot produce on its own.
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Frequently asked questions
No, cheddar cheese is not a complete protein. Cheddar cheese contains abundant amounts of 8 out of the nine essential amino acids but is a little short on lysine.
Pairing cheddar cheese with foods such as cauliflower, carrots, watermelon, crimini mushrooms, or cranberries can create a complete protein profile.
To get adequate amounts of all nine essential amino acids from cheddar cheese alone, an average person would need to eat 1.3 cups of cheddar cheese (167 grams), which is about 24% more than the amount required to meet protein requirements.
Other cheeses that are high in protein include cottage cheese, ricotta, Parmesan, Romano, non-fat cheddar, Gruyere, low-fat Swiss, and fontina.

























