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Barley flour vs Oats: How Do They Compare?

This article explains the key similarities and differences between barley flour and oats, foods from the grains food group. Read on to learn more about the barley flour vs oats comparison.
Catherine Toledo, Journalist

Written by Catherine Toledo, Journalist. Updated on January 28, 2023.

Barley flour and oats belong to the grains food group, one of the staple food groups for people on a plant-based diet.

Grains and grain products are an affordable source of carbohydrates, as well as essential vitamins and minerals, including B vitamins (such as thiamin, riboflavin, and niacin), iron, and zinc, minerals that are usually harder to get on a plant-based diet.

They also provide a small amount of protein and healthy fats.

However, it is important to note that whole grains are generally a better source of these nutrients than refined grains.

This article will thoroughly compare barley flour and oats and help you learn more about their similarities and differences.

Barley flour

Barley flour (Hordeum vulgare) is made from ground barley, which is a type of cereal grain that is grown in many parts of the world.

It is a good source of carbohydrates, dietary fibers, and small amounts of vitamins and minerals like magnesium, phosphorus, and B vitamins. It is also rich in antioxidants and protein, making it a valuable food for vegetarians and vegans.

Barley flour is commonly used in baking, particularly in traditional dishes such as bread and porridge. It has a slightly sweet, nutty flavor and can be used as a substitute for wheat flour in most recipes. It is also gluten-free and easy to digest, making it a great option for people with gluten sensitivities or celiac disease.

Barley flour is considered a functional food, as it has been shown to positively impact health when consumed regularly as part of a balanced diet. It is also a sustainable crop, as it can be grown in poor soil conditions and is resistant to pests and diseases.

Barley flour is an excellent source of Vitamin B1 (Thiamine), and Vitamin B3 (Niacin).

It also contains a good amount of Vitamin B6 (Pyroxidine) and some Vitamin B2 (Riboflavin), and Vitamin E.


Oats (Avena sativa) is a type of cereal grain grown for their edible seeds, also known as groats.

They are a good source of dietary fibers, particularly beta-glucan, which has been linked to various health benefits such as reducing cholesterol levels and improving digestion. They also provide a good source of vitamins, minerals, and antioxidants such as vitamin E, zinc, iron, and manganese.

Oats are a staple ingredient in many breakfast foods such as oatmeal, granola, and muesli. They can also be used as an ingredient in baking, added to smoothies, and used as breading for meat and fish dishes. Oat flour, made from ground oats, can also be a gluten-free alternative in baking.

Oats are also considered a functional food, as they have been shown to positively impact health when consumed regularly as part of a balanced diet.

Oats is an excellent source of Vitamin B1 (Thiamine), and Vitamin B5 (Pantothenic acid).

It also contains a good amount of Vitamin B2 (Riboflavin), and Vitamin B9 (Folate) and some Vitamin B3 (Niacin), and Vitamin B6 (Pyroxidine).

Barley flour vs Oats Nutrition

Now that we’ve described the origin, taste, and usage of these foods, we can move to the most interesting part – comparing barley flour vs oats.

This comparison will start by comparing the caloric value of barley flour and oats and their macronutrients and then go more in-depth by analyzing their vitamin and mineral content.

Barley flourOats
Energy345 kcal389 kcal
Carbs74.5 g66.3 g
Sugar0.8 g0 g
Fiber10.1 g10.6 g
Protein10.5 g16.9 g
Fat1.6 g6.9 g
Saturated Fat0.335 g1.22 g

Barley flour vs Oats Calories

Most calories in grains come from carbs.

Comparing barley flour vs oats for weight loss, barley flour is slightly lower in calories, with 345 calories per 100 grams, compared to 389 calories per 100 grams of oats.

However, both barley flour and oats can and should be a part of a healthy diet, and neither one shouldn’t be avoided if you’re looking to lose weight.

Barley flour vs Oats Protein

Grains and most grain products, including barley flour and oats, are important sources of plant-based protein.

However, it should be noted that most grains, with the exception of quinoa and buckwheat, for example, are low in lysine and methionine.

That said, you can combine grains with legumes to get a complete protein.

Oats offers around 38% more protein than barley flour.

Oats has 16.9 grams of protein per 100 grams, while barley flour has 10.5 grams of protein per 100 grams.

Barley flour vs Oats 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 barley flour and oats.

The total amount of carbohydrates is around 11% higher in barley flour than in oats. It has 74.5 grams per 100 grams, compared to 66.3 grams in oats.

There’s less sugar in oats than in barley flour, 100% precisely.

That said, 100 grams of oats contains 0 grams of sugar, while the same amount of barley flour contains 0.8 grams.

Lastly, let’s take a look at the dietary fiber in barley flour and oats.

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

With 10.6 grams of fiber per 100 grams, oats is a better source of fiber than barley flour which offers 10.1 grams per 100 gram portion.

Barley flour vs Oats Fats

Like most other grains, barley flour and oats are low in fat.

Fats in barley flour and oats are mostly healthy unsaturated fats. They are naturally cholesterol-free and trans-fat-free.

Total fat in barley flour and oats:

  • Barley flour: 1.6 grams per 100 grams
  • Oats: 6.9 per 100 grams

Speaking of saturated fats, barley flour is 75% lower in saturated fats.

Barley flour and oats contain 0.3 grams and 1.2 grams of saturated fat per 100 grams, respectively.

Barley flour vs Oats Vitamins Content

This section will discuss the vitamin content of barley flour and oats.

Vitamins are micronutrients, meaning we need only a small amount. However, they are very important for many processes in our bodies.

Barley flour has a higher amount of vitamin B1 (Thiamine), vitamin B2 (Riboflavin), vitamin B5 (Pantothenic acid), and vitamin B9 (Folate).

However, oats has a higher amount of vitamin B3 (Niacin), vitamin B6 (Pyroxidine), vitamin E, and vitamin K.

Barley flour and oats contain the same amount of vitamin A, vitamin C, vitamin D, and vitamin B12 (Cobalamin).

The following table shows the exact amount of vitamins barley flour and oats contain side by side, so you can easily compare them.

Barley flourOats
Vitamin A00
Vitamin C00
Vitamin D00
Vitamin B1 (Thiamine)0.37 mg0.763 mg
Vitamin B2 (Riboflavin)0.114 mg0.139 mg
Vitamin B3 (Niacin)6.27 mg0.961 mg
Vitamin B5 (Pantothenic acid)0.145 mg1.35 mg
Vitamin B6 (Pyroxidine)0.396 mg0.119 mg
Vitamin B9 (Folate)8 µg56 µg
Vitamin B12 (Cobalamin)00
Vitamin E0.57 mg0.05 mg
Vitamin K2.2 µg0.9 µg

Barley flour vs Oats 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 barley flour and oats comparison focuses on their mineral content.

Barley flour is a better source of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, and zinc than oats.

On the other hand, oats is a higher amount of selenium, and sodium.

Barley flour and oats contain the same amount of fluoride.

Check out the table below to learn how barley flour and oats compare when it comes to mineral content.

Barley flourOats
Calcium32 mg54 mg
Copper0.343 mg0.626 mg
Iron2.68 mg4.72 mg
Magnesium96 mg177 mg
Manganese1.03 mg4.92 mg
Phosphorus296 mg523 mg
Potassium309 mg429 mg
Selenium37.7 µg2.7 µg
Sodium4 mg2 mg
Zinc2 mg3.97 mg

The Final Word

This article highlighted the similarities and differences between barley flour and oats.

Grains, also known as cereal grains, are an important source of nutrition for many people around the world. They are a rich source of carbohydrates, which provide energy for the body.

Whole grains contain important vitamins and minerals, such as B vitamins and iron. Whole grains, in particular, are high in dietary fiber and can help with digestion and weight management.

They may also have other health benefits, such as reducing the risk of heart disease, diabetes, and certain types of cancer.

Grains are also a staple food and an important source of food security in many parts of the world.


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