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Pinto Beans vs Soy Protein Isolate: How Do They Compare?

This article explains the key similarities and differences between pinto beans and soy protein isolate, foods from the legumes and legume product group. Read on to learn more about the pinto beans vs soy protein isolate comparison.
Dennis Gillett, Health & Fitness Writer

Written by Dennis Gillett, Health & Fitness Writer. Updated on January 19, 2023.

Pinto Beans 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 pinto beans and soy protein isolate and help you learn more about their similarities and differences.

Pinto Beans

Pinto beans (Phaseolus vulgaris) are a type of legume native to Central and South America.

They are a popular ingredient in many vegan and vegetarian dishes due to their high protein and fiber content, as well as their rich, nutty flavor.

Pinto beans are also a good source of several important nutrients, including potassium, iron, and B vitamins.

They can be enjoyed in a variety of dishes, such as pinto bean soup, chili, and salads.

In addition to being a nutritious food, pinto beans have been shown to have a number of potential health benefits.

They have been linked to lower cholesterol levels and improved blood sugar control, and may also help to reduce the risk of certain types of cancer.

Pinto Beans are an excellent source of Vitamin B1 (Thiamine), Vitamin B6 (Pyroxidine), and Vitamin B9 (Folate).

They also contain a good amount of Vitamin B2 (Riboflavin), and Vitamin B5 (Pantothenic acid) and some Vitamin C, Vitamin B3 (Niacin), and Vitamin K.

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).

Pinto Beans 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 pinto beans vs soy protein isolate.

This comparison will start by comparing the caloric value of pinto beans and soy protein isolate and their macronutrients and then go more in-depth by analyzing their vitamin and mineral content.

Pinto BeansSoy Protein Isolate
Energy347 kcal335 kcal
Carbs62.6 g0 g
Sugar2.11 g0 g
Fiber15.5 g0 g
Protein21.4 g88.32 g
Fat1.23 g3.39 g
Saturated Fat0.235 g0.422 g

Pinto Beans 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 pinto beans for weight loss, soy protein isolate is slightly lower in calories, with 335 calories per 100 grams, compared to 347 calories per 100 grams of pinto beans.

However, both pinto beans 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.

Pinto Beans vs Soy Protein Isolate Protein

Legumes and most legume products, including pinto beans and soy protein isolate, are important sources of plant-based protein.

Soy Protein Isolate offers around 76% more protein than pinto beans.

Soy Protein Isolate has 88.3 grams of protein per 100 grams, while pinto beans have 21.4 grams of protein per 100 grams.

Pinto Beans 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 pinto beans and soy protein isolate.

The total amount of carbohydrates is around 100% higher in pinto beans than in soy protein isolate. They have 62.6 grams per 100 grams, compared to 0 grams in soy protein isolate.

There’s less sugar in soy protein isolate than in pinto beans, 100% precisely.

One handful of soy protein isolate (28 grams) contains 0 grams of sugar, while the same amount of pinto beans contains 0.6 grams.

Lastly, let’s take a look at the dietary fiber in pinto beans and soy protein isolate.

Dietary fiber keeps the digestive system healthy and helps with weight management by promoting a sense of fullness.

With 4.3 grams of fiber per portion, pinto beans are a better source of fiber than soy protein isolate which pinto beans offer 0 grams per portion.

Pinto Beans vs Soy Protein Isolate Fats

Like most other legumes, with the exception of lupins and peanuts, pinto beans and soy protein isolate are low in fat.

Fats in pinto beans and soy protein isolate are mostly healthy unsaturated fats. They are naturally cholesterol-free and trans-fat-free.

Total fat in pinto beans and soy protein isolate:

  • Pinto Beans: 1.2 grams per 100 grams
  • Soy Protein Isolate: 3.4 per 100 grams

Speaking of saturated fats, pinto beans are 50% lower in saturated fats.

Pinto Beans and soy protein isolate contain 0.2 grams and 0.4 grams of saturated fat per 100 grams, respectively.

Pinto Beans vs Soy Protein Isolate Vitamins Content

This section will discuss the vitamin content of pinto beans 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.

Pinto Beans have a higher amount of vitamin B3 (Niacin).

However, soy protein isolate has a higher amount of vitamin C, vitamin B1 (Thiamine), vitamin B2 (Riboflavin), vitamin B5 (Pantothenic acid), vitamin B6 (Pyroxidine), vitamin B9 (Folate), vitamin E, and vitamin K.

Pinto Beans and soy protein isolate contain the same amount of vitamin A, vitamin D, and vitamin B12 (Cobalamin).

The following table shows the exact amount of vitamins pinto beans and soy protein isolate contain side by side, so you can easily compare them.

Pinto BeansSoy Protein Isolate
Vitamin A00
Vitamin C6.3 mg0
Vitamin D00
Vitamin B1 (Thiamine)0.713 mg0.176 mg
Vitamin B2 (Riboflavin)0.212 mg0.1 mg
Vitamin B3 (Niacin)1.17 mg1.438 mg
Vitamin B5 (Pantothenic acid)0.785 mg0.06 mg
Vitamin B6 (Pyroxidine)0.474 mg0.1 mg
Vitamin B9 (Folate)525 µg176 µg
Vitamin B12 (Cobalamin)00
Vitamin E0.21 mg0
Vitamin K5.6 µg0

Pinto Beans 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 pinto beans and soy protein isolate comparison focuses on their mineral content.

Pinto Beans are a better source of calcium, copper, iron, manganese, phosphorus, sodium, and zinc than soy protein isolate.

On the other hand, soy protein isolate is a higher amount of fluoride, magnesium, potassium, and selenium.

Check out the table below to learn how pinto beans and soy protein isolate compare when it comes to mineral content.

Pinto BeansSoy Protein Isolate
Calcium113 mg178 mg
Copper0.893 mg1.599 mg
Fluoride2.2 µg0
Iron5.07 mg14.5 mg
Magnesium176 mg39 mg
Manganese1.15 mg1.493 mg
Phosphorus411 mg776 mg
Potassium1390 mg81 mg
Selenium27.9 µg0.8 µg
Sodium12 mg1005 mg
Zinc2.28 mg4.03 mg

The Final Word

Pinto Beans and soy protein isolate are highly nutritious and a great addition to a plant-based diet.

Both pinto beans 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.

Sources

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.

How we ensure this article is accurate?
  1. It's written and or reviewed by an expert.
  2. We cite relevant studies and trusted sources.
  3. It's regularly updated.

Read more about our process and team.