Pigeon Peas vs Soy Protein Isolate: How Do They Compare?
Pigeon Peas and soy protein isolate belong to the legumes and legume products food group, one of the staple food groups for people on a plant-based diet.
Legumes and most legume products are an affordable source of plant protein, dietary fiber, B vitamins, and minerals such as iron, calcium, potassium, and zinc, minerals that are usually harder to get on a plant-based diet.
This article will thoroughly compare pigeon peas and soy protein isolate and help you learn more about their similarities and differences.
Pigeon Peas
Pigeon peas (Cajanus cajan) are a legume widely cultivated in tropical and subtropical regions worldwide.
They are a staple food in many countries, including India, Africa, and South America.
Pigeon peas are known for their high protein and fiber content, as well as their rich flavor and versatility in cooking.
Pigeon peas can be used in various dishes such as dals, curries, soups, and stews. They can also be used to make flour and snacks.
They peas are an excellent source of plant-based protein and are a good source of minerals like iron, zinc, and potassium.
They are also rich in antioxidants and can help to reduce inflammation and protect against certain types of cancer.
Pigeon peas are also low in fat and cholesterol-free, making them a great option for a healthy diet.
Pigeon Peas is an excellent source of Vitamin B1 (Thiamine), Vitamin B5 (Pantothenic acid), and Vitamin B9 (Folate).
It also contains a good amount of Vitamin B2 (Riboflavin), Vitamin B3 (Niacin), and Vitamin B6 (Pyroxidine).
Soy Protein Isolate
Soy protein isolate is a highly purified form of protein derived from soybeans.
It is made by removing most of the fats and carbohydrates from soybeans, leaving mostly protein behind. It is a popular ingredient in many processed foods, such as protein bars and powders, as well as in meat and dairy alternatives.
Soy protein is also used as a binder and emulsifier in various foods.
Soy protein isolate is a good source of essential amino acids, which are the building blocks of protein. It is also low in fat and cholesterol-free, making it a heart-healthy option.
Additionally, it may help to lower cholesterol levels, improve bone health and support weight management. It can also be a good source of protein for vegetarians and vegans.
Soy Protein Isolate is an excellent source of Vitamin B9 (Folate).
It also contains a good amount of Vitamin B1 (Thiamine) and some Vitamin B2 (Riboflavin), Vitamin B3 (Niacin), and Vitamin B6 (Pyroxidine).
Pigeon Peas vs Soy Protein Isolate Nutrition
Now that we’ve described the origin, taste, and usage of these foods, we can move to the most interesting part – comparing pigeon peas vs soy protein isolate.
This comparison will start by comparing the caloric value of pigeon peas and soy protein isolate and their macronutrients and then go more in-depth by analyzing their vitamin and mineral content.
Pigeon Peas | Soy Protein Isolate | |
---|---|---|
Energy | 343 kcal | 335 kcal |
Carbs | 62.78 g | 0 g |
Sugar | 0 g | |
Fiber | 15 g | 0 g |
Protein | 21.7 g | 88.32 g |
Fat | 1.49 g | 3.39 g |
Saturated Fat | 0.33 g | 0.422 g |
Pigeon Peas vs Soy Protein Isolate Calories
Most calories in raw legumes come from carbs. Peanuts are an exception here, but they are often considered a nut instead of a legume because of their nutritional profile.
Comparing soy protein isolate vs pigeon peas for weight loss, soy protein isolate is slightly lower in calories, with 335 calories per 100 grams, compared to 343 calories per 100 grams of pigeon peas.
However, both pigeon peas and soy protein isolate can and should be a part of a healthy diet, and neither one shouldn’t be avoided if you’re looking to lose weight.
Pigeon Peas vs Soy Protein Isolate Protein
Legumes and most legume products, including pigeon peas and soy protein isolate, are important sources of plant-based protein.
Soy Protein Isolate offers around 75% more protein than pigeon peas.
Soy Protein Isolate has 88.3 grams of protein per 100 grams, while pigeon peas has 21.7 grams of protein per 100 grams.
Pigeon Peas vs Soy Protein Isolate Carbs
Counting carbs can be important for some people for different reasons, including blood sugar control, weight management, or athletic performance.
It’s also important for people on a keto diet, so let’s compare the carbs content in pigeon peas and soy protein isolate.
The total amount of carbohydrates is around 100% higher in pigeon peas than in soy protein isolate. It have 62.8 grams per 100 grams, compared to 0 grams in soy protein isolate.
One handful of pigeon peas and soy protein isolate (28 grams) contains 0 grams of sugar, the same amount.
Lastly, let’s take a look at the dietary fiber in pigeon peas and soy protein isolate.
Dietary fiber keeps the digestive system healthy and helps with weight management by promoting a sense of fullness.
With 4.2 grams of fiber per portion, pigeon peas is a better source of fiber than soy protein isolate which pigeon peas offers 0 grams per portion.
Pigeon Peas vs Soy Protein Isolate Fats
Like most other legumes, with the exception of lupins and peanuts, pigeon peas and soy protein isolate are low in fat.
Fats in pigeon peas and soy protein isolate are mostly healthy unsaturated fats. They are naturally cholesterol-free and trans-fat-free.
Total fat in pigeon peas and soy protein isolate:
- Pigeon Peas: 1.5 grams per 100 grams
- Soy Protein Isolate: 3.4 per 100 grams
Speaking of saturated fats, pigeon peas is 25% lower in saturated fats.
Pigeon Peas and soy protein isolate contain 0.3 grams and 0.4 grams of saturated fat per 100 grams, respectively.
Pigeon Peas vs Soy Protein Isolate Vitamins Content
This section will discuss the vitamin content of pigeon peas and soy protein isolate.
Vitamins are micronutrients, meaning we need only a small amount. However, they are very important for many processes in our bodies.
However, soy protein isolate has a higher amount of vitamin A, vitamin B1 (Thiamine), vitamin B2 (Riboflavin), vitamin B3 (Niacin), vitamin B5 (Pantothenic acid), vitamin B6 (Pyroxidine), and vitamin B9 (Folate).
Pigeon Peas and soy protein isolate contain the same amount of vitamin C, vitamin D, vitamin B12 (Cobalamin), vitamin E, and vitamin K.
The following table shows the exact amount of vitamins pigeon peas and soy protein isolate contain side by side, so you can easily compare them.
Pigeon Peas | Soy Protein Isolate | |
---|---|---|
Vitamin A | 28 IU | 0 |
Vitamin C | 0 | 0 |
Vitamin D | 0 | 0 |
Vitamin B1 (Thiamine) | 0.643 mg | 0.176 mg |
Vitamin B2 (Riboflavin) | 0.187 mg | 0.1 mg |
Vitamin B3 (Niacin) | 2.965 mg | 1.438 mg |
Vitamin B5 (Pantothenic acid) | 1.266 mg | 0.06 mg |
Vitamin B6 (Pyroxidine) | 0.283 mg | 0.1 mg |
Vitamin B9 (Folate) | 456 µg | 176 µg |
Vitamin B12 (Cobalamin) | 0 | 0 |
Vitamin E | 0 | 0 |
Vitamin K | 0 | 0 |
Pigeon Peas vs Soy Protein Isolate Minerals Content
Minerals are important for our body to function properly. We need only a small amount of minerals, so they are called micronutrients.
Some minerals, like iron, calcium, zinc or, iodine, are relatively hard to get on a plant-based diet, so it’s important to choose your foods thoughtfully. This part of the pigeon peas and soy protein isolate comparison focuses on their mineral content.
Pigeon Peas is a better source of calcium, copper, iron, phosphorus, sodium, and zinc than soy protein isolate.
On the other hand, soy protein isolate is a higher amount of magnesium, manganese, potassium, and selenium.
Pigeon Peas and soy protein isolate contain the same amount of fluoride.
Check out the table below to learn how pigeon peas and soy protein isolate compare when it comes to mineral content.
Pigeon Peas | Soy Protein Isolate | |
---|---|---|
Calcium | 130 mg | 178 mg |
Copper | 1.057 mg | 1.599 mg |
Fluoride | 0 | 0 |
Iron | 5.23 mg | 14.5 mg |
Magnesium | 183 mg | 39 mg |
Manganese | 1.791 mg | 1.493 mg |
Phosphorus | 367 mg | 776 mg |
Potassium | 1392 mg | 81 mg |
Selenium | 8.2 µg | 0.8 µg |
Sodium | 17 mg | 1005 mg |
Zinc | 2.76 mg | 4.03 mg |
The Final Word
Pigeon Peas and soy protein isolate are highly nutritious and a great addition to a plant-based diet.
Both pigeon peas and soy protein isolate are high in specific vitamins and minerals, and including them in your diet will give you the most benefits they offer.
Antioxidants found in beans and legumes can help to protect cells from damage and may reduce the risk of certain diseases and the effects of aging.
Additionally, the fiber and other nutrients in these foods can support the health of the digestive system and may even help to prevent certain digestive cancers.
Legumes are versatile food that can be incorporated into any meal of the day, including breakfast, lunch, or dinner. They can be served hot or cold, making them a convenient and tasty addition to a variety of dishes.
Holy Peas has strict sourcing guidelines and draws only from high-quality sources, including peer-reviewed studies, academic research institutions, and medical journals, associations and government institutions. Read more about our process.
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Soy Protein Isolate Nutrients, U.S. Department of Agriculture, Agricultural Research Service https://fdc.nal.usda.gov/fdc-app.html#/food-details/167746/nutrients
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Listing of vitamins, Harvard Health Publishing, Harvard Medical School https://www.health.harvard.edu/staying-healthy/listing_of_vitamins/
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Appendix 7. Nutritional goals for age-sex groups based on dietary reference intakes and Dietary Guidelines recommendations. (n.d.).
https://health.gov/dietaryguidelines/2015/guidelines/appendix-7/
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International tables of glycemic index and glycemic load values 2021: a systematic review
https://academic.oup.com/ajcn/article/114/5/1625/6320814?login=false
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Health Claim Notification for Saturated Fat, Cholesterol, and Trans Fat, and Reduced Risk of Heart Disease
https://www.fda.gov/food/food-labeling-nutrition/health-claim-notification-saturated-fat-cholesterol-and-trans-fat-and-reduced-risk-heart-disease
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Nutrient Recommendations: Dietary Reference Intakes (DRI), Food and Nutrition Board of the National Academies of Sciences Engineering, and Medicine
https://ods.od.nih.gov/HealthInformation/nutrientrecommendations.aspx
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Protein And Amino Acid Requirements In Human Nutrition, WHO
https://apps.who.int/iris/bitstream/handle/10665/43411/WHO_TRS_935_eng.pdf
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Nutrition Facts Labeling RDIs Nutrients, U.S. Food and Drug Administration
https://www.fda.gov/media/99069/download
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Nutrition Facts Labeling DRVs Food Components, U.S. Food and Drug Administration
https://www.fda.gov/media/99059/download
- It's written and or reviewed by an expert.
- We cite relevant studies and trusted sources.
- It's regularly updated.
Read more about our process and team.