Overview of the health benefits of spinach

Spinach is known as a "nutritional model student" and is rich in vitamins, minerals and antioxidants. It has core functions such as eye protection, blood replenishment, and immunity enhancement. Its main nutritional components includeVitamins A, C, K, iron, folic acid and dietary fiber, suitable for people with anemia, constipation and excessive eye use. The secondary functions include assisting in blood sugar control and promoting bone health. It should be noted that the oxalic acid content is high. It is recommended to blanch it before consumption to improve absorption rate.

The "golden partner" of eye protection and blood replenishment

spinachVitamin AandLuteinIt can relieve visual fatigue and prevent macular degeneration; andiron elementwithfolic acidSynergistically promotes hemoglobin synthesis and improves anemia. A study in the American "Clinical Nutrition" pointed out that 100g of spinach per day can meet 70% of adults' vitamin K needs and contribute to blood coagulation function. Well-known nutritionist David Kieber once recommended spinach as a "natural blood tonic".

Enhance immunity and gut health

in spinachVitamin CThe content is 1.5 times that of tomatoes, withbeta-caroteneCan improve immunity. itsdietary fiber(Contains 2.2g per 100g) Promotes intestinal peristalsis and prevents constipation. According to data from the Chinese Center for Disease Control and Prevention, spinach extract can regulate the balance of intestinal flora, but it needs to be avoided with high-calcium foods to prevent oxalic acid from affecting calcium absorption.

Precautions for special populations

People with kidney stones should limit their spinach intake because oxalic acid may increase the risk of stone formation. Pregnant women can take moderate amounts of folic acid, but they need to be cooked and sterilized. Launched by Japan's Meiji Pharmaceutical“Spinach Concentrate”(Product No. ML-302) removes 80% of oxalic acid and is suitable for people with special needs. Domestic brands such asTongrentangThere are also spinach extract supplements.

Scientific food advice and summary

Spinach should be paired with vitamin C-rich foods (such as citrus) to promote iron absorption. After blanching, oxalic acid can be reduced by 60%. The "Dietary Guidelines for Chinese Residents" recommends consuming 300-500g of green leafy vegetables per week, and spinach can be consumed 1-2 times a week. Common products are shown in the table below:

Quote sources:
1. USDA FoodData Central
2. David Kieber, "The Power of Superfoods" (published in 2018)
3. Chinese Center for Disease Control and Prevention’s “Vegetable Nutrition Assessment Report” 2021 Edition