While it is known that citric acids can weakentooth enamel and can cause tooth erosion, a new study shows a different take on vitamin C and oral health. Performed by Friedrich Schiller University in Germany, the study reported that eating grapefruit every day may help reduce bleeding gums and help promote the healing of gum disease.
Researchers had 58 volunteers with chronic gum disease eat two grapefruits a day and found that it had a positive effect on gum disease; this was true for smokers and non-smokers. The researchers believe this is due to the increase in vitamin C, which promotes healing of wounds. Each grapefruit contains over 90 mg of vitamin C.
The study was published in the British Dental Journal. If Vitamin C is the main component of healing bleeding gums, we are left to wonder if oranges and vitamin C supplements have the same affect.