Why Japanese Natto Remaíns Rare on Russian Breakfast Tables
Japanese natto, a traditional dish of boiled soybeans fermented with Bacillus subtilis var. natto, remains virtually absent from Russian breakfast tables despite global recognition of the Japanese diet as a standard for active longevity, pg21.ru reported. For most Europeans, the dish presents a challenging appearance, featuring beans coated in a sticky, viscous slime accompanied by a sharp ammoniacal odor and a specific tart taste. In contrast, residents of Japan consume millions of packages each morning by placing a portion directly over a bowl of hot rice.
Chemical Changes During Soybean Fermentation
The persistence of Japanese consumers stems from a unique chemical profile produced during microbial fermentation. During this process, soybeans lose phytic acid—a compound that hinders the absorption of micronutrients—and become rich in the enzyme nattokinase. This substance actively breaks down fibrin, a protein that forms the base of blood clots, helping to prevent thrombosis and reduce blood viscosity without the side effects of synthetic drugs.
The primary nutritional value of natto lies in its natural concentration of vitamin K2, specifically menaquinone-7. This micronutrient regulates calcium distribution in the human body by directing the mineral into bone tissue and tooth enamel while clearing it from artery walls. According to nutritional observations of East Asian diets, the fermented beans also restore intestinal microflora through billions of spore-forming bacteria. These bacteria withstand gastric acid, suppress pathogenic microorganisms, and aid the natural production of B vitamins. A single 100-gram portion supplies nearly the daily recommended intake of absorbable plant protein along with roughly 5 grams of soluble dietary fiber to stabilize glucose levels.
Traditional Preparation Methods and Local Alternatives
Traditional preparation in Japan involves stirring a portion of beans with chopsticks 40 to 50 times in a clockwise direction. Prolonged mixing thickens the protein webbing around the grains to intensify the umami flavor. Cooks then add a dash of soy sauce, spicy karashi mustard, chopped green onions, or a raw quail egg before serving the mixture over warm rice.
Dietitians advise consumers who dislike the strong aroma of natto to seek out accessible local sources of probiotics and similar enzymes. Fermented foods such as traditional long-fermented sauerkraut, soaked apples, and whole-grain rye bread made with live sourdough offer similar nutritional metabolites.