• Greener
  • Posts
  • The grain that uses 15X less water than rice

The grain that uses 15X less water than rice

šŸššŸŒ¾ & whole grains

Aerial view of a harvester working in a golden wheat field, with surrounding green fields and distant wind turbines under a cloudy sky in Münster.

Grains remain a dietary staple worldwide, appearing in everything from bread and pasta to cereals and porridges. From the wheat fields of Mesopotamia to the rice paddies of Asia, grains have shaped diets, economies and agricultural practices for thousands of years. This vast array of choices, can be overwhelming if you don’t know what to look for. Lets explore the health benefits and resources needed for the 15 most consumed grains in the US.

In today’s issue:

  • Early Adopters: Whole & specialty grains

  • Health: Not all grains are created equal

  • Environment: Common grains over-consume resources

  • History: How ancient empires shaped our staples

  • Industry: 15+ countries supply America with our grains

EARLY ADOPTERS

Early adopters recognize that choosing the right grain can have a significant impact on their quality of life. That’s why they opt for whole grains that not only provide energy, but also essential micronutrients. Among them, quinoa is the top choice, offering excellent health benefits—being naturally gluten-free and nutrient-dense—while also maintaining a low environmental footprint.

ā

Quinoa uses 15X less water, 16% less land & 2X less emissions than the most popular grain, white rice.

Amaranth & teff are popular choices if you intend to reinvent the age-old traditional of porridge. These grains require relatively low inputs and are among the most nutrient-dense options available. A great way to eat teff is by visiting an Ethiopian restaurant, where you can try injera, a traditional flatbread made with teff flour.

While many grains are widely accessible, wild rice is a specialty grains that early adopters actively seek out. This rice, grown by Indigenous communities along natural waterways, is an excellent way to support the farming of the only grain native to the US.

If none of these options suit your lifestyle, consider swapping common grains for healthier, more sustainable options:

  1. Couscous → Millet

  2. Rice (White) → Rice (Brown)

HEALTH

Not all grains are created equal

For those sensitive to gluten, selecting the right grain could mean the difference between feeling full and dealing with a host of digestive problems. In the US, ~6% of the population has a gluten intolerance, experiencing discomfort after consuming wheat, barley or rye. Fortunately, 60% of the grains we’re discussing are gluten-free including Amaranth, Brown Rice, Buckwheat, Millet, Oats, Quinoa, Teff, White Rice & Wild Rice.

Among the 15 most consumed grains, there are 16 micronutrients that provide over 15% per serving highlighted in the table below:

Grain

Gold šŸ„‡

Silver 🄈

Bronze šŸ„‰

Quinoa

Omega-3 (43%)

Copper* (33%)

Vitamin B9 (19%)

Boron* (45%)

Antioxidants* (30%)

Magnesium (28%)

Phosphorus* (23%)

Zinc* (18%)

Iron (16%)

Protein (16%)

Low Carb*

Rice (Brown)

Vitamin B6 (18%)

Vitamin B1* (17%)

Manganese* (44%)

Copper* (22%)

Selenium* (16%)

Antioxidants* (30%)

Millet

Molybdenum (302%)

Vitamin B1* (17%)

Manganese* (44%)

Omega-3* (36%)

Copper* (22%)

Boron* (40%)

Wild Rice (Indigenous)

Antioxidants (70%)

Phosphorus (31%)

Magnesium (31%)

Copper* (22%)

Manganese* (39%)

Farro (Wheat)

Vitamin B1* (17%)

Copper* (22%)

Selenium (15%)

Wild Rice (Commercial)

Phosphorus (28%)

Copper* (22%)

Manganese* (39%)

Bulgar (Wheat)

Low Carb*

Rice (White)

Couscous

Compared against: Amaranth, Barley, Buckwheat, Bulgar (Wheat), Couscous, Farro, Millet, Oats, Quinoa, Rice (Brown), Rice (White), Spelt, Teff, Wild Rice (Commercial) & Wild Rice (Indigenous).

* indicates a tie.

Several grains are more commonly enjoyed as porridge rather than a side dish. However, porridge fell out of style around 1900 when ready-to-eat cereals emerged, offering a more convenient alternative that appealed to a busier lifestyle. Nonetheless, grains used in porridge offer a nutrient-dense meals that few can rival as highlighted in the table below:

Grain

Gold šŸ„‡

Silver 🄈

Bronze šŸ„‰

Amaranth

Manganese* (48%)

Magnesium (38%)

Copper* (33%)

Iron (29%)

Zinc (28%)

Vitamin B1* (17%)

Boron* (45%)

Omega-3* (36%)

Protein (19%)

Low Carb

Fiber (16%)

Teff

Protein (20%)

Fiber (20%)

Omega-3* (36%)

Iron (22%)

Copper* (22%)

Zinc (20%)

Molybdenum (247%)

Boron* (40%)

Phosphorus* (23%)

Millet

Molybdenum (302%)

Vitamin B1* (17%)

Manganese* (44%)

Omega-3* (36%)

Copper* (22%)

Boron* (40%)

Spelt

Copper* (33%)

Vitamin B1* (17%)

Manganese* (44%)

Selenium* (16%)

Zinc* (18%)

Buckwheat

Manganese* (48%)

Molybdenum (264%)

Boron* (45%)

Omega-3* (36%)

Copper* (22%)

Oats

Boron (50%)

Selenium* (18%)

Low Carb

Antioxidants (42%)

Manganese* (39%)

Omega-3* (29%)

Barley

Selenium* (18%)

Fiber (19%)

Boron* (40%)

Antioxidants* (30%)

Farro (Wheat)

Vitamin B1* (17%)

Copper* (22%)

Selenium (15%)

Compared against: Amaranth, Barley, Buckwheat, Bulgar (Wheat), Couscous, Farro, Millet, Oats, Quinoa, Rice (Brown), Rice (White), Spelt, Teff, Wild Rice (Commercial) & Wild Rice (Indigenous).

* indicates a tie.

Grains are a well-known staple of a healthy diet, providing essential energy for the day ahead. Choosing the right grain can do even more—helping to combat chronic diseases:

  • Quinoa - Lowers the risk of heart disease (2020).

  • Amaranth - Reduces cholesterol levels (2007).

  • Teff - Lowers the risk of colon, breast, liver & prostate cancers (2022).

  • Oats - Reduce blood pressure (2021).

  • Brown Rice - Lowers the risk of Type II Diabetes (2011).

Whats the big deal with ā€œwhole grainsā€?

All grains naturally contain 3 components: the bran, germ and endosperm. Whole grains retain all 3, making them richer in micronutrients without spiking your blood sugar. In contrast, refined grains undergo processing that removes the bran and germ, resulting in a softer texture, milder flavor, faster cooking time and lower cost. Since this removes nutrients, its a common practice to fortify these refined grains with various nutrients, often derived from compounds you wouldn’t expect in your food. These qualities make refined grains a key ingredient in processed foods like chips, cookies and crackers.

With so many options on the market, identifying whole grains can be challenging—but we’ve got you covered.

Grain

Grain Type

Exception

Amaranth

Whole

Buckwheat

Whole

Bulgar (Wheat)

Whole

Millet

Whole

Quinoa

Whole

Rice (Brown)

Whole

Teff

Whole

Wild Rice (Indigenous)

Whole

Barley

Whole

Pearled Barley

Farro

Whole

Pearled Farro

Oats

Whole

Instant Oats

Wild Rice (Commercial)

Refined

Rice (White)

Refined

ENVIRONMENT

On average, producing 1 lb. of any grain, requires 840 gallons of water, 25 sq. ft. of land and 1 lb. of CO2e. The resources involved in producing various grains are highlighted in the table below:

Grain

Water

(Gallons)

Land

(sq. ft.)

Emissions

(lb. of CO2e)

Wild Rice (Indigenous)

100

5

0.35

Buckwheat

225

20

0.75

Quinoa

200

30

1

Millet

300

20

0.75

Barley

300

30

1

Oats

350

25

1

Amaranth

400

17.5

1

Spelt

400

25

1

Teff

450

12.5

0.75

Farro (Wheat)

450

25

1

Wild Rice

(Commercial)

400

20

1.25

Average

840

25

1

Bulgar (Wheat)

1,750

40

0.75

Couscous

1,750

40

0.75

Rice (Brown)

2,500

35

1.5

Rice (White)

3,000

35

2

HISTORY

How ancient empires shaped our staples

Grains have been a cornerstone of civilizations across the globe, sustaining ancient empires and fueling their expansion. Whether it be the Mayans, Babylonians or Romans, each relied on specific grains to support their conquest. As these empires grew, so did the influence of their staple grains, spreading their cultivation and popularity—some earlier than others.

Origins in the Americas:

  • Amaranth - Mexico thru Peru, 6000 BCE

  • Quinoa - Peru, Bolivia, Ecuador & Columbia, 3000 BCE

  • Wild Rice - Great Lakes (US), 1000 BCE

Origins in the Middle East:

  • Barley - Turkey, 8000 BCE

  • Farro - Turkey, 7000 BCE

  • Oats - Turkey, 6000 BCE

  • Spelt - Turkey, 5500 BCE

  • Millet - Iran, 5000 BCE

  • Bulgar - Syria, 4000 BCE

Origins in Southeast Asia:

  • Rice - China, India, Thailand, 8000 BCE

  • Buckwheat - Himalayas (China), 6000 BCE

Origins in Africa:

  • Teff - Ethiopia & Eritrea, 2500 BCE

  • Couscous - Morocco, Algeria, Tunisia & Libya, 1000 CE

Why does wild rice have such a rich American history?

Wild rice is the only popular grain that originated in the US, making it intertwined with the history of Indigenous Americans. This rice grows on freshwater lakes, rivers and wetlands near the Great Lakes in modern day Minnesota, Wisconsin, Michigan and some parts of Canada. Here is where the Ojibwe, Menominee, Sioux, Cree and Anishinaabe harvested wild rice with only a canoe and a of couple sticks.

Learn more about wild rice’s rich history with Indigenous Americans in the video below.

As Manifest Destiny drove millions of Americans westward, the wetlands that supported wild rice would be changed forever. The Swamp Land Acts (1849, 1850 & 1860) allowed states to drain 65 million acres of federally owned wetlands to make way for agriculture, logging and urban expansion. In just Minnesota, Wisconsin & Michigan—key regions where wild rice thrived—wetlands equivalent in size to South Carolina were drained:

  1. Minnesota: 10 million acres

  2. Wisconsin: 4.3 million acres

  3. Michigan: 4 million acres

Without these wetlands wild rice hasn’t been the same, especially for the communities that rely on them. While indigenous-owned operations still harvest wild rice from natural waterways, most of the wild rice sold today is grown in paddy fields with strains selectively bred with white rice. This new grain doesn’t offer nearly as many nutrients as wild rice native to the US.

What influence did European colonists have on the globalization of grains?

The Spanish, during their conquest of South and Central America, played a significant role in promoting certain grains while limiting others. They introduced wheat and barley—grains favored in Europe— while banning indigenous grains like Amaranth and Quinoa, which were integral to local diets. These grains were also associated with pagan rituals, viewed as symbols of resistance to European culture.

INDUSTRY

All You Can Eat Food GIF by Bernardson

15+ countries supply America with our grains

While we may be the best at advertising grain-rich foods, we are far from producing all the grains we consume. On average, the US only produces 35% of the 15 most consumed grains.

Grain

Domestic Production

Major Trade Partner

Oats

80%

Canada

Rice (Brown)

75%

Thailand, India

Barley

65%

Canada

Millet

60%

India, China

Rice (White)

55%

Thailand, India

Average

35%

Quinoa

30%

Peru, Bolivia

Wild Rice

30%

Canada

Buckwheat

20%

Russia, China

Teff

20%

Ethiopia, India

Spelt

20%

Germany, Italy, Canada

Amaranth

10%

India, Peru, Mexico

Farro

10%

Italy, Turkey

Bulgar (Wheat)

5%

Turkey, Syria

Couscous

0%

Tunisia, Morocco, France

ā

White rice, the most popular grain in America, is consumed 8X more than the second most popular grain, oats.

Do you really need to wash your grains before cooking?

Washing grains before cooking removes foreign particles & industrial chemicals introduced during farming and transportation. If grains are washed before they’re packaged, the absorbed water would reduce their shelf life, promote bacteria growth, & alter their texture, flavor and nutritional value. Instead, it’s left up to you to wash your grains and is typically the best hygiene to do so. In fact, washing whole grains removes phytic acid, making nutrients like iron and zinc more bioavailable.

TIGHT 5

  • Lentils: Are technically a legume, even though they have similar uses to grains.

  • NASA: Has approved Amaranth for astronauts because it is nutrient-dense and easy to cultivate in space.

  • 25: pounds of white rice are eaten each year by each American.

  • Couscous: Has the fastest cook time, taking only 5 minutes.

  • Barley: Is the second most used grain in cattle feedlots due to its high fiber content.

PUBLIC SERVICE ANNOUNCEMENT

Thanks for tuning in to learn about small changes that add up to make a big difference. When changing your lifestyle, consider professional advice (not me). I am a member of the Amazon Affiliate program and do make a commission from your purchase without any added cost to you. Your contributions allow us to continue making content.