Buckwheat: Nature’s Solution for High Blood Pressure, Plus Wellness Recipes From a 5-Generation TCM Family

Zhang Weijun offers insights to the types and benefits of buckwheat and how to eat them for greater health.
Buckwheat noodles.Inin_0/Shutterstock
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Cultivated for more than 8,000 years, buckwheat is an ancient grain that has never been genetically modified and is gaining increasing popularity among those who wish to eat more healthy foods.

Zhang Weijun, the fifth-generation successor of the esteemed Taiwanese traditional Chinese medicine (TCM) family business Huai Sheng Tang, shares an exclusive buckwheat wellness recipe designed to help lower high blood pressure, improve high cholesterol, and manage elevated blood sugar levels—all while safeguarding the health of blood vessels.

According to Chinese legend, during the Northern Song Dynasty, General Yang’s army found themselves besieged by the Liao army at Yanmen Pass on the northwest border. They were running low on food supplies, and the soldiers were exhausted. Moreover, there was a shortage of medicine, resulting in casualties. Fortunately, the residents donated buckwheat to support the soldiers. After consuming buckwheat for several days, the soldiers not only regained their strength but also witnessed the wounded and sick recovering without the need for medicine. In the end, General Yang’s forces successfully broke through the Liao army’s encirclement and returned victorious to the capital.

High Nutritional Value and Gluten Free

Buckwheat is a highly resilient grain, being both drought resistant and pest resistant, making it possible to cultivate even in arid regions, Mr. Zhang said. From both a modern nutritional perspective and insights from ancient Chinese medical literature, buckwheat is indeed highly beneficial for human health.

Buckwheat has a relatively high protein content compared with other grains and contains various essential amino acids.

Buckwheat is rich in minerals such as phosphorus, potassium, magnesium, calcium, and iron. Among these, magnesium plays a crucial role in heart regulation, cholesterol reduction, and the prevention of myocardial infarctions (heart attacks) resulting from atherosclerosis (a thickening or hardening of the arteries because of plaque buildup). Additionally, magnesium helps to soothe the nervous system and enhances central nervous system function in the elderly, thereby promoting better sleep quality.
Buckwheat, especially Himalayan tartary buckwheat, contains the trace mineral selenium, which helps to regulate immune function.

Buckwheat is also rich in fiber, which promotes digestive health and is beneficial for controlling blood sugar in individuals with diabetes.

Despite its name, buckwheat is different from barley and wheat, as it doesn’t contain gluten, making it suitable for individuals with gluten intolerance.

Rutin-Rich and Anti-Inflammatory

Buckwheat also contains a valuable plant polyphenol known as rutin, sometimes referred to as vitamin P. Rutin offers various benefits, including being anti-inflammatory, antimicrobial, and antiviral. It can also promote cardiovascular health.

Mr. Zhang explained that in ancient times, buckwheat flour was used to treat full-body skin infections. For patients with suppurating skin infections, finely ground buckwheat flour was evenly spread across the entire bed, and the patients would lie on the bed, allowing the buckwheat flour to adhere uniformly to their bodies. Rutin in buckwheat possesses anti-inflammatory and antibacterial properties, which can help to alleviate skin infections.

During the flu season in autumn and winter, rutin found in buckwheat can enhance resistance to viruses and allergens. Additionally, drinking buckwheat tea can promote gum health by reducing inflammation-induced gum bleeding.

Research has revealed that rutin acts as an antioxidant, safeguarding blood vessels and reducing the risk of atherosclerosis by inhibiting the oxidation of low-density lipoprotein in the bloodstream. Notably, Tartary buckwheat boasts a rutin content significantly higher than common buckwheat, with levels reaching up to 80 to 100 times more.
Rutin also has blood pressure-lowering effects, thus regularly consuming buckwheat tea and incorporating soba noodles into the diet can help to reduce the risk of stroke.

The Versatile Uses of Buckwheat in TCM

According to Mr. Zhang, traditional Chinese medicine has other remarkable applications for buckwheat:
1. Reduce Acne Scars: Once acne develops, it can be challenging to heal, and its color tends to gradually darken. This can be addressed by drinking buckwheat tea, which will help to transition the acne from dark to red and promote gradual healing.
2. Reduce Inflammation: A mixture of buckwheat powder and rice vinegar can be used to treat cellulitis.
3. Improve Gut Inflammation and Diarrhea: Roast buckwheat powder until it turns golden, and then boil it in water for consumption, which can help to alleviate diarrhea.
4. Treat Burns and Scalds: Apply a mixture of buckwheat powder and water to burned or scalded areas to prevent blistering.

The Differences Between Common Buckwheat and Tartary Buckwheat

Buckwheat can be categorized into common buckwheat and Tartary buckwheat. Common buckwheat is the type commonly found in the market, with triangular seeds. Tartary buckwheat, also known as bitter buckwheat, has elliptical seeds.
Tartary buckwheat offers greater medicinal benefits and contains higher levels of vitamin B1, B2, and rutin. Both vitamins B1 and B2 play crucial roles in metabolism. Specifically, vitamin B1 can protect nerves and the brain, as well as improve body soreness and low mood. Vitamin B2 supports skin health and contributes to the growth of hair and nails.

Common buckwheat is widely used as a grain for consumption and is readily available in the market. It is often prepared as buckwheat porridge or by grinding it into powder and steeping it in hot water. To enhance the flavor, you can add nuts and roasted black beans to the porridge. Buckwheat powder can also be combined with lotus root powder and consumed by steeping it in water.

Traditionally, Tartary buckwheat is roasted and used to make buckwheat tea. It can also be ground into powder and mixed with flour to make soba noodles.

The Zhang Family’s Recipes

The Zhang family, who have been in the medical profession for generations, focus on dietary therapy and health preservation, believing that “life-saving ingredients are in the kitchen.” Mr. Zhang shares his ways of consuming buckwheat:

1. Soy Milk With Buckwheat

Cook raw buckwheat and yellow soybeans together, then blend them to create soy milk with buckwheat. This mixture has a thick and viscous texture that enhances the creaminess of soy milk.

2. Grain Sweet Potato Rice

Cook buckwheat with brown rice, adlay millet (Job’s tears), and sweet potato to prepare a bowl of grain sweet potato rice. Opt for common buckwheat for enhanced flavor.

3. Soba Noodles

Soba noodles are a traditional Japanese dish, typically prepared by cooking, chilling, and serving them with a dipping sauce made from kelp soy sauce and a garnish of seaweed shreds. In addition, Mr. Zhang also introduced two unique ways to enjoy them:
  • Soba Noodles With Soy Milk: Start by pouring soy milk into a bowl and seasoning it with salt. Then, add the cooked soba noodles and mix them with the seasoned soy milk. Finally, drizzle some seaweed sauce and garnish with cucumber, scallions, and optionally, a soft-boiled egg to complete the dish.
  • Soba Noodles With Pesto: Mr. Zhang also enjoys using soba noodles as a substitute for Italian pasta. The method involves cooking the noodles, chilling them, and then drizzling three tablespoons of pesto sauce over them. You can complement your dish with your choice of meat, eggs, and seafood. For added variety and flavor, consider adding okra, sweet peppers, and green cauliflower to the dish.

Tartary Buckwheat Tea: A Natural Way to Lower Blood Pressure

Mr. Zhang’s favorite beverage is buckwheat tea, made by simply brewing roasted Tartary buckwheat in hot water. It’s an excellent choice for those who prefer something more flavorful than plain water and wish to avoid sugary drinks.

Buckwheat tea purchased in stores is typically pre-roasted and ready to steep in hot water. If you buy raw Tartary buckwheat, you'll need to roast or toast it to reduce its bitterness. However, it’s worth noting that the bitter taste of buckwheat is associated with its medicinal compound, rutin. The greater the bitterness, the more effective it is in lowering blood pressure.

Mr. Zhang suggests that if you experience symptoms such as high blood pressure, neck tightness, or numbness in your fingers, you can use buckwheat tea as a first-aid remedy. After about 30 minutes, your blood pressure will gradually decrease, he said.

(New Africa/Shutterstock)
New Africa/Shutterstock

Potential Allergenic Reactions to Sprouted Buckwheat

In recent years, there has been a trend of consuming sprouted grains for their increased nutritional value and improved digestibility. However, Mr. Zhang cautions that consuming significant amounts of sprouted buckwheat can lead to skin allergies, particularly in individuals with sensitive skin.
Mr. Zhang also pointed out that four other groups of people shouldn’t consume buckwheat. These groups include people with these certain ailments:

1. People With Digestive Problems

Buckwheat is rich in soluble fiber and resistant starch, a type of starch that isn’t easily digested. While it can result in a slower increase in blood sugar, individuals prone to bloating or with digestive issues should avoid excessive consumption, as it may cause gastrointestinal discomfort.

2. People Who’ve Had Gastrointestinal Surgery or Require a Low-Residue Diet

Patients who have undergone gastrointestinal surgery, have a history of digestive system cancer, or suffer from digestive system ulcers, thus requiring a low-residue diet, should avoid consuming whole buckwheat grains. This is because they can irritate the gastrointestinal mucosa, exacerbating digestive tract ulcers. The solution is to blend buckwheat into buckwheat milk or use buckwheat flour for consumption.

3. People With Esophageal Varices

Individuals with esophageal varices should also refrain from consuming whole buckwheat kernels because the hardness of buckwheat’s outer shell could potentially damage the blood vessels in the esophagus.

4. People With Kidney Diseases

Individuals with kidney diseases should avoid overeating buckwheat, as it could increase the burden on the kidneys because of its higher phosphorus and potassium content.

Guide to Buying Buckwheat

When choosing raw buckwheat, select grains that are uniform in size, plump, and exhibit a shiny appearance. A lack of shine may indicate prolonged storage. For cooked buckwheat and buckwheat flour, opt for those with no unpleasant oily or moldy odors. Once purchased, store them in a cool, dry, and well-ventilated area. If you buy in large quantities, consider using the freezer for storage.
Mr. Zhang also often buys dried soba noodles. Buckwheat contains polyunsaturated fats that may undergo mild oxidation when exposed to air, resulting in a subtle oily taste and smell. This doesn’t necessarily indicate spoilage. However, if you notice a strong, unpleasant oily taste or detect moldy spots, it’s best to dispose of them.

Buckwheat Pillow for Restful Sleep

Besides their use as a food product, buckwheat hulls also have health and wellness benefits, making them well-suited for use as pillow fillings. Buckwheat hull pillows offer a balanced level of firmness and elasticity, excellent breathability, and a cooling effect, even during hot summer nights.

Sleeping on a buckwheat hull pillow can help to relax the head and neck and thus improve sleep quality, Mr. Zhang said. After a restful night’s sleep on a buckwheat hull pillow, you may feel more refreshed and alert. You can also blend cassia seeds with the buckwheat hulls to create a coffee-like aroma.