Overview of the efficacy and functions of Wulan

Wulan, also known as black olive or olive, is a fruit with both edible and medicinal value. Its core functions include antioxidant, laxative, promoting digestion and supporting cardiovascular health. The main ingredients, such as polyphenols and dietary fiber, give it antioxidant effects and improve intestinal function; the secondary effects involve relieving throat discomfort and supplementing trace elements. The following will provide a detailed description of its nutritional content, specific health benefits and consumption recommendations.

1. Nutritional components and antioxidant effects of olives

Black olive is rich in polyphenols, vitamin E and unsaturated fatty acids, among which the polyphenol content is particularly prominent. Studies have shown that every 100 grams of olive oil contains about 120 mg of polyphenols (see table below), which can effectively scavenge free radicals and delay cell aging. In addition, its vitamin E content is 2-3 times that of ordinary fruits, which synergistically enhances the antioxidant effect and is beneficial to skin health and immunity.

2. Benefits of laxative and digestive system

The dietary fiber in olives can promote intestinal peristalsis and relieve constipation. Its natural oil content can also lubricate the intestines, which is especially suitable for middle-aged and elderly people who eat a delicate diet. According to the traditional Chinese medicine classic "Compendium of Materia Medica", Wu Lan "produces fluid, quenches thirst, and benefits the large intestine." It is recommended to consume 2-3 pills daily to achieve a mild laxative effect, but excessive amounts may cause diarrhea.

3. Potential Help for Cardiovascular Health

The proportion of unsaturated fatty acids (such as oleic acid) in olives accounts for more than 70%, which helps regulate blood lipid levels. The Chinese Nutrition Society pointed out that moderate intake can help reduce low-density lipoprotein cholesterol (LDL-C), but it should be noted that it has high calories (about 150 kcal per 100 grams), and patients with high blood pressure should control their intake.

4. Food Suggestions and Precautions

Wulan can be eaten fresh or pickled, but salted products have a high sodium content, so it is recommended to choose the original flavor. Special groups such as pregnant women and patients with gastric ulcers should consult a physician. Its kernels can also be used as medicine, but they need to be handled professionally to avoid poisoning. Taken together, black olive is a nutritious and healthy food, and its value can only be exerted by eating it properly.

Quote sources:
1. "Chinese Food Composition List" (Sixth Edition)
2. Li Shizhen's "Compendium of Materia Medica"
3. Chinese Nutrition Society’s “Dietary Guidelines for Chinese Residents”