买过维生素C的人都能发现，市面上存在不同价格的维生素C，从2元至上百元不等。那么，不同价格的 维生素C有什么区别？ 维生素C有什么作用？ 维生素C也叫"抗坏血酸"，它是人体不可或缺的一种营养成分。人体长期缺乏维生素C会导致坏血病， 引起牙龈出血、牙齿脱落、皮肤问题，严重时会危及生命。 从我国的调查数据来看，中国65岁及以上居民平均每天维生素C的摄入量是71.8毫克，18岁至35岁成年 人平均每天的维生素C摄入量是56.41毫克/天，而人体的健康推荐量是100毫克/天。 可以看出，很多人存在维生素C摄入不足的问题，主要原因是水果蔬菜吃得不够。所以，每天适量地补 充维生素C没有坏处。 2元维C和上百元维C有什么区别？ 市场上维生素C产品有很多，有的两三元一瓶，而两三百元一瓶通常声称是"天然维生素C"。那么，天 然维生素C和人工合成维生素C有什么区别？ 其实，从人体补充维生素C的角度，天然维生素C和人工合成维生素C没有区别。 首先，二者化学结构一样，只是来源方式不同。天然维生素是从食物中提取的，合成维生素是利用人工 合成的方法制造出的、具有相同成分的维生素。 其次，二者作用相同。维生素C本身就是一种化学物质，无论是 ...

Core Viewpoint - The article highlights various fruits that are rich in Vitamin C, emphasizing their health benefits and nutritional values, particularly in boosting immunity and providing antioxidant properties [1]. Group 1: Vitamin C Rich Fruits - **NO.1: Prickly Pear**: Known as the "Vitamin C King," it contains 2585 mg of Vitamin C per 100 grams, significantly higher than citrus fruits and kiwifruit. It also has high levels of carotenoids and various beneficial compounds [2]. - **NO.2: Winter Jujube**: Contains 243 mg of Vitamin C per 100 grams, which is 60-70 times that of apples. It is rich in dietary fiber and other vitamins, promoting immune health [4]. - **NO.3: Sea Buckthorn**: Offers 204 mg of Vitamin C per 100 grams, along with other vitamins and active compounds that support digestion and immunity [6]. - **NO.4: Kiwifruit**: Contains 62 mg of Vitamin C per 100 grams and is known for its antioxidant properties and ability to aid in blood sugar regulation [8]. - **NO.5: Hawthorn**: Provides 53 mg of Vitamin C per 100 grams and is beneficial for digestion and alleviating food stagnation [10]. - **NO.6: Grapefruit**: Contains 38 mg of Vitamin C per 100 grams and is noted for its potassium content, which can help lower blood pressure [12]. - **NO.7: Kumquat**: Offers 35 mg of Vitamin C per 100 grams and has various organic acids that provide health benefits [14]. - **NO.8: Orange**: Contains 33 mg of Vitamin C per 100 grams and is associated with various health benefits, including immune support and cardiovascular health [15]. Group 2: Importance of Vitamin C - Vitamin C is essential for human health, aiding in collagen synthesis, free radical elimination, and immune function. It cannot be synthesized by the body and must be obtained through diet [17]. - The recommended daily intake for adults is 100 mg, with a higher intake of 200 mg suggested for chronic disease prevention [17]. Group 3: Consumption Tips - Fresh fruit consumption is emphasized over fruit juices, as juicing can lead to significant Vitamin C loss due to oxidation [19]. - It is advised to consume fresh fruits promptly to retain their nutritional value, as prolonged storage can degrade their quality [20]. - For individuals with high blood sugar, it is recommended to limit fruit intake to 50-150 grams per day and to consume fruits in moderation to avoid spikes in blood sugar levels [22].

Core Insights - Vitamin C products have gained popularity in recent years, with claims of benefits ranging from cardiovascular health to skincare, leading to a price disparity between natural and synthetic options [1][4] - The average daily intake of Vitamin C among older adults in China is 71.8 mg, while the recommended daily intake is 100 mg, indicating a deficiency in many individuals [2] - There is no significant difference in the nutritional effects of natural versus synthetic Vitamin C, as both have the same chemical structure and health benefits [4][6] Vitamin C Importance - Vitamin C, also known as ascorbic acid, is essential for human health, preventing conditions like scurvy, which can lead to severe health issues [1] - Long-term deficiency can result in serious health problems, highlighting the importance of adequate Vitamin C intake [1] Vitamin C Intake Recommendations - It is recommended to consume 500 grams of vegetables and 250 grams of fruits daily to meet Vitamin C needs, with specific examples of high Vitamin C foods provided [7][10] - For those concerned about dietary intake, a daily supplement of 100-200 mg of Vitamin C is suggested, but excessive intake should be avoided due to potential health risks [10] Natural vs. Synthetic Vitamin C - The primary difference between natural and synthetic Vitamin C is the price, with synthetic options being significantly cheaper while providing the same health benefits [6] - Both forms of Vitamin C are chemically identical and serve the same nutritional purpose, debunking myths about the superiority of natural sources [4][6]