There is no such thing as the fastest fruit for vitamin C supplementation, but proper supplementation of prickly pear, sea buckthorn, sour dates and kiwifruit is good for vitamin C supplementation. Due to the extreme abundance of fruits in nature, it is difficult to accurately give a list of the fastest fruits for vitamin C supplementation, but some fruits have significantly higher vitamin C content than others. For example, prickly pear contains 2585 mg of vitamin C per 100 grams of prickly pear, 204 mg of vitamin C per 100 grams of sea buckthorn, 900 mg of vitamin C per 100 grams of jujubes, and 210 mg of vitamin C per 100 grams of kiwifruit. supplementing with the above fruits in moderation can provide the human body with adequate amounts of vitamin C. It is worth noting that more vitamin C is not better, and fruit intake has its own fixed requirements. According to the Dietary Guidelines, a daily intake of 200 to 350 milligrams of fruit is sufficient to meet the body’s nutritional requirements. When consuming fruits, it is recommended to combine them with other nutrients, such as vegetables, staple foods and meat, to achieve a balanced diet.