Amino Acid in Common Foods May Aid Gut Recovery Post-Cancer Treatment
New research suggests that an amino acid present in common foods like meat, cheese, nuts, and beans could support gut recovery for cancer patients after treatment. A study conducted by scientists at the Massachusetts Institute of Technology (MIT) focused on cysteine, a sulfur-containing amino acid, and found it has a significant rejuvenating effect on intestinal stem cells often damaged during radiation therapy.
The findings indicate that if human studies corroborate these results, increasing cysteine intake—either through diet or supplements—could benefit those recovering from cancer treatments.
Omer Yilmaz, the senior author of the study and director of the MIT Stem Cell Initiative, stated, “This study suggests that providing patients with a diet rich in cysteine or supplementation may reduce some injuries caused by chemotherapy or radiation.”
Cancer treatments such as chemotherapy and radiation can harm the gut’s lining, leading to problems with digestion and overall recovery. Cysteine may help activate immune cells that release signals to regenerate intestinal tissue, making it especially beneficial for healing.
The research involved dividing mice into groups, each fed a diet rich in one of 20 different amino acids. Researchers monitored the impact of each amino acid on the regeneration of intestinal stem cells. It was found that cysteine had the most substantial effects on the small intestine, a primary site for protein absorption.
The study also discovered that a high-cysteine diet could aid recovery from the effects of 5-fluorouracil, a drug commonly used to treat colon and pancreatic cancers. This provides further evidence of cysteine’s potential benefits.
While this research is promising, experts like Dr. Amie Hornaman emphasize the necessity of human trials to confirm these findings. “Cysteine is not a magic bullet, but it may become a useful tool,” she said. Hornaman suggests focusing on whole food sources of cysteine along with proper nutrition that supports gut health.
Typical sulfur amino acid requirements range from 13 to 19 milligrams per kilogram of body weight each day, generally met through a balanced and varied diet. Hornaman advises cancer patients and survivors to stay hydrated, prioritize protein and fiber intake, and consult their healthcare team before making any significant dietary changes during treatment.
This research underscores the importance of nutrition in recovery and highlights the potential of everyday foods in supporting health post-cancer treatments. Further studies are anticipated to explore these benefits in humans and look into other amino acids that might influence gut health.
