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Vegetables to Lower Blood Glucose Levels
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Diabetes is a disorder that impacts metabolism and is marked by high blood glucose levels, commonly known as hyperglycemia. The objectives of treatment encompass lowering blood sugar levels and precluding the occurrence of long-term complications. In addition to adjustments in lifestyle and medication, the hypoglycemic characteristics of plants are increasingly being utilized.
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The white mulberry, also recognized as Morus alba, is a therapeutic plant originating from East Asia. It is frequently employed to assist in the management of diabetes.
Morus alba is one of the most commonly utilized plants for the treatment of diabetes. It contains 1-deoxynojirimycin (DNJ), a compound that belongs to the polysaccharide family. DNJ is responsible for enhancing the carbohydrate economy, decreasing the blood glucose level post meals, and impacting the general glucose level. The mechanism of action entails inhibiting the activity of enzymes that partake in the metabolism of carbohydrates, such as alpha-glucosidase and maltase. Scientists have affirmed the hypoglycemic attributes of the plant in animal studies and investigations involving diabetes patients.
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A Parade of the Ceylon Cinnamon Tree
Cinnamon is one of the most popular spices used in traditional medicine. It has been used as an adjuvant in the treatment of colds, muscle and joint pain, and to improve the functioning of the circulatory system. Its health properties have been known for a long time, which is why it was used in traditional medicine for many years. Cinnamomum zeylanicum is a source of numerous bioactive compounds that have been studied by scientists to investigate possible effects on diabetes and cardiovascular diseases. Studies have shown that cinnamon has the ability to lower blood sugar levels through several mechanisms, such as inhibiting gluconeogenesis, reducing the release and activity of digestive enzymes, increasing insulin sensitivity, and increasing insulin production by the pancreas's beta cells. In one study, patients with type 2 diabetes who received cinnamon had lower blood sugar and HbA1c levels than the control group.
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Fenugreek, a prevalent herb
Trigonella foenum-graecum, also known as fenugreek, is a plant with blood sugar-lowering properties. It belongs to the Fabaceae family and employs its seeds and leaves as raw materials. Fenugreek has been utilized for ages in traditional Chinese medicine for the treatment of digestive disorders, inflammatory skin conditions, upper respiratory illnesses, and diabetes. Its advantageous health effects are owed to the existence of numerous bioactive compounds, including flavonoids, glucosides, saponins, and alkaloids. Specifically, the amino acid 4-hydroxyisoleucine plays a significant role in reducing blood sugar levels. This amino acid promotes the release of insulin from the beta cells of the pancreas, consequently lowering blood sugar levels. Other essential compounds encompass the alkaloid trigonelline, saponins, and polyphenols, which augment the sensitivity of tissues to insulin. Research has shown that these compounds can be as effective as metformin, a medication used to manage diabetes. Fenugreek seeds also contain substantial quantities of galactomannans, which delay gastric emptying and impede the activity of enzymes that decompose carbohydrates, thereby assisting in regulating blood sugar levels post-meals.
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Usual Bean
Another plant with hypoglycemic properties that belongs to the legume family, similar to that of cauliflower, and can therefore contribute to the pharmacotherapy of type 2 diabetes is Phaseolus vulgaris. The health effects on the human body are due to the presence of m.a.w. amino acids, choline, trygonelin, phenolic acids, and mineral salts. The hypoglycemic properties of beans are particularly attributed to chromium compounds, which prevent fluctuations in blood glucose levels. Chromium together with two amino acids and nicotinic acid and glutamic acid forms the so-called glucose tolerance factor (glucose tolerance factor – GTF), which is produced in the liver and released into the blood when the levels of glucose or insulin rise. Researchers suggest that a water extract from the legumes can contribute to the improvement of glucose metabolism parameters. In one study, it was observed that the administration of 100 mg extract together with a meal resulted in a decrease in postprandial blood glucose levels (A. Spadafranca et al. 2012). Furthermore, the legume extract exhibits antioxidant activity and improves lipid metabolism by lowering the levels of triglycerides, free fatty acids, phospholipids, and cholesterol. This is of great importance in preventing the consequences of persistent hyperglycemia.
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Fresh or Cooled
Aloe vera (Latin: Aloe vera) also exhibits hypoglycemic properties, specifically, the gel or juice obtained from the leaves. These properties result from the presence of polysaccharides, such as glukomannan and acemannan. Aloe vera also contains anthraquinone compounds that affect carbohydrate metabolism. However, in excessive amounts, they may cause a laxative effect – to prevent this, a single dose should not exceed 50 ml. There are numerous observations in animal models showing hypoglycemic properties such as glukomannan and acemannan (M. H. Sánchez et al. 2020; F. Pohan et al. 2022). A study with participants in a prediabetic state also confirmed this effect on the human body. The study included 45 individuals with impaired fasting glucose or impaired glucose tolerance. They were administered powdered aloe gel and parameters such as fasting glucose, insulin, and glycated hemoglobin (HbA1c) were observed. After 8 weeks, improvements were noted in all participants. Therefore, scientists suggest that aloe vera can be successfully used to prevent diabetes or support the therapy of patients (S. Devaraj et al. 2013).
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Gurmar, also recognized as Gymnema Sylvestre, is a plant native to India that resembles grapevines. In Indian languages, the name of this plant signifies 'sugar destroyer'.
Gurmar contains an active substance in its leaves known as gurmarine, which numbs the taste buds and restricts the ability to perceive sweet taste. Additionally, the leaves of this plant contain other compounds that aid in the treatment of diabetes, including gymnematic acid, which belongs to the family of triterpene glucosides. This chemical compound has a beneficial effect on the pancreas, promoting the regeneration of the Langerhans islets, and stimulating cells to increase production and release of insulin. Furthermore, gurmar enhances the utilization of glucose and slows its release into the blood, demonstrating a hypoglycemic effect. These properties have been confirmed through scientific research.
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Summary
Many recognizable plants possess the ability to decrease blood glucose levels. This hypoglycemic activity is a result of the presence of bioactive substances that have a positive influence on glucose-insulin functioning. These plants, used as steams, spices, or extracts, can contribute to the treatment of diabetes. However, it is important to remember that the foundation of therapy lies in changing dietary habits, increasing physical activity, and taking medications recommended by a doctor. It is also necessary to constantly monitor blood parameters that assess the degree of diabetes stabilization.
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• 15.03.2026
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