Overview:
Research conducted by scientists in Sweden has revealed that taking vitamins C and E may actually cause lung cancers to grow bigger and spread. The study, published in The Journal of Clinical Investigation, found that mice with cancer who were given additional vitamins showed increased formation of new blood vessels within the tumours. While the study does not provide conclusive evidence, it has raised concerns about the potential dangers of taking excessive amounts of vitamins.
The Research Findings:
The Swedish scientists behind the study warned that individuals with any form of cancer should not alter their diet based on these findings. Supplementing with excessive vitamin C and E through pills and supplements could potentially cause harm. The study involved giving mice with cancer additional vitamins that they already obtained from their diet. The researchers observed that the more vitamins the mice were given, the more new blood vessels formed within the tumours, which could lead to their growth and spread. However, it is important to note that this study was conducted on animals and may not necessarily translate to humans.
Expert Commentary:
Dr Martin Bergö, the author of the study and an expert at the Karolinska Institute in Sweden, stressed that vitamins are still crucial for human health and should not be completely eliminated from one's diet. He explained that removing all antioxidants from food could lead to various health issues, including vitamin deficiencies, which in turn could impact cancer development. However, Dr Bergö emphasized that the focus of their research was on excessive supplementation above the recommended levels.
Vitamin C and E: Benefits and Recommended Intake:
Vitamin C is primarily found in fruits and vegetables such as lemons, peppers, strawberries, blackcurrants, broccoli, and potatoes. It plays a vital role in protecting cells, maintaining healthy skin, blood vessels, bones, and cartilage, as well as promoting wound healing. Adults aged 19 to 64 require 40mg of vitamin C daily, and it is typically attainable through a regular diet. Severe vitamin C deficiency can lead to a condition called scurvy.
Vitamin E is found in various foods like plant oils, nuts and seeds, as well as cereals. It contributes to maintaining healthy skin and eyes, and it also boosts the body's immune system. Women need 3mg of vitamin E per day, while men require 4mg. Similar to vitamin C, it is possible to get an adequate amount of vitamin E through one's daily diet. Any excess vitamin E that the body doesn't require is stored for future use, meaning it doesn't need to be consumed every day.
Conclusion:
While the study highlights the possibility of excessive vitamin C and E supplementation contributing to the growth and spread of lung cancer tumours, it is crucial to interpret these findings with caution. Human trials and further research are needed to fully understand the implications. For now, experts recommend sticking to the recommended daily intake and obtaining vitamins primarily through a balanced diet. Individuals with cancer are advised to consult their healthcare professionals before making any significant changes to their diet or supplement routine.
