Vegetarian Research|Abstract


Vegetarian Research Vol. 22 (2021), pp. 1-6

Benefits and Risks of Plant-based Diets in Chronic Kidney Disease

Megumi Nagai

Due to the Westernization of eating habits in recent years, the proportion of plant-based food intake has been declining in Japan. In contrast, it is also true that some people are vegetarians for reasons such as the environment, animal protection and health. Since the 20th century, plant-based diets have been epidemiologically known to reduce the risk of cardiovascular diseases represented by myocardial infraction and stroke. The kidneys are responsible for maintaining fluid homeostasis and removing waste products. Chronic kidney disease, in which kidney function gradually declines, is considered to be present in one in eight Japanese people and may increase with aging and an increase in the prevalence of lifestyle-related diseases. Chronic kidney disease is an independent risk factor for cardiovascular disease, in addition to the risk of end-stage kidney disease. In recent years, research results have been reported stating that a plant-based diet suppresses the progression of chronic kidney disease. When considering the pathophysiology of end-stage kidney disease and physically vulnerable elderly people, there is the possibility of death due to frailty, falls and cardiac arrest if there is too much restriction of protein and an over-intake of potassium. Based on evidence regarding plant-based diets with respect to kidney disease, it is hoped that clinical guidelines will be prepared on this topic. At least in advanced cases of chronic kidney disease, it is desirable to manage nutrition under the advice of a nephrologist or a dietitian.
Key words: Chronic kidney disease, Potassium, Plant-based protein


Vegetarian Research Vol. 22 (2021), pp. 7-12

Bactericidal and Antibacterial Effects of Several Kinds of Teas and Mouthwash Solutions Against Oral Bacteria

Akinori Takai

In this study, we investigated bactericidal and antibacterial activities of five kinds of teas (green tea, black tea, roasted tea (Hoji-cha), jasmine tea, barley tea (Mugi-cha)), and four kinds of mouthwash solutions against oral bacteria. The oral bacteria were treated with each tea or mouthwash solution for two minutes, cultured on a blood agar plate. The survival rates of the bacteria were approximately 55% in green tea, black tea and roasted tea, 65% in Jasmine tea, and over 100% in barley tea. Those in the mouthwash solutions containing antiseptic agents were approximately 0-14%. This study suggests that all the teas tested excepting for the barley tea are effective as gargle solutions due to their bactericidal and antibacterial properties against oral bacteria.
Key words: Gargle solution, Green tea, Black tea, Mouthwash solution, Oral bacteria, Bactericidal and antibacterial activities


Vegetarian Research Vol. 22 (2021), pp. 13-15

Experiment to Create a New Fault Model for Wheat Allergy by the Microscale Method.

Yoko Sato1, Hisataka Ohta

Abstract. In this study, we attempted to develop small fault models that can be handled by children and students with wheat allergies. As a result, it was possible to create a small falt model consisting of purple sweet potato powder and skimmed milk and a small falt model consisting of purple sweet potato powder and quinoa flour. These may be beneficial for vegetarian children and students with wheat allergies.
Key words: fault model, microscale method, wheat allergy, vegetarian


Vegetarian Research Vol. 21 (2020), pp. 1-8

Health Benefits and Precautions of The Vegetarian Diet

Kenji Fukunaga

Vegetarians are often pointed out to be deficient in protein, some vitamins, minerals, and n-3 polyunsaturated fatty acids. But vegetarians can also select appropriate food for necessary nutrients from plant food and effectively improves and maintains health in many cases. A vegetarian diet reduces the prevalence of lifestyle-related diseases such as cardiovascular diseases and malignant neoplasms. On the other hand, there are also biased perspectives. Some people are swept away by populism, blindly believing that plant foods are suitable for the body and the environment and that animal foods are harmful and unhealthy. There are various backgrounds to a vegetarian diet. Suppose you practice a vegetarian diet for health. In that case, you need to be interested in a vegetarian diet, better understand nutrition and food science, and have a scientific perspective. This review outlines vegetarianism's current state and the essential nutrients for vegetarians to practice a healthy vegetarian diet.
Key words: Vegetarian, Health, Plant food, Nutrient, Benefit, Lifestyle-related diseases


Vegetarian Research Vol. 21 (2021), pp. 9-12

Bactericidal and Antibacterial Effects of Green Tea and Black Tea As Gargle Solutions Against Oral Bacteria

Akinori Takai

In this study, we have conducted bactericidal and antibacterial effects of green tea and black tea against oral bacteria using agar-agar as a culture medium. Survival rate of the oral bacteria treated with each tea for two minutes was approximately 50% (50.7% in green tea and 55.5% in black tea). This study suggests that those green and black tea are effective as gargle solutions due to their bactericidal and antibacterial properties against oral bacteria.
Key words: Gargle solution, Green tea, Black tea, Oral bacteria, Bactericidal and antibacterial activities


Vegetarian Research Vol. 21 (2020), pp. 13-15

Vegetarianism and Human and Animal Welfare

Koichi Hashimoto

In recent years, it is said that the number of people are shifting its diet and lifestyle to vegetarian and/or vegan. Vegan diet rate has shown rapid increase worldwide from various perspectives such as health, environment, and animals. This article examines the relationship between vegetarianism and the welfare of humans and animals through UN reports, Nature studies, and news of the transition to vegetarianism. Dr. Jane Goodall, a vegan UN peace ambassador and zoologist, has clearly stated that both climate change and pandemics are caused by humans destroying animal habitats, buying and selling animals, etc., and that it is essentially important to have compassion for all animals.
Key words: Animal welfare, Human welfare, Sustainability, Compassion, Mindfulness, Well-being