In short
Potato starch, a natural dietary supplement, is currently being studied in clinical trials for its potential benefits in two distinct areas of medical research. One trial is investigating its effects on patients undergoing cancer treatment with immune checkpoint inhibitors, while another is exploring its potential to alleviate symptoms of Gulf War Illness. These studies aim to understand how potato starch, as a form of resistant starch, may influence the gut microbiome and potentially improve patient outcomes in these conditions.
What is Potato Starch?
Potato starch, also known as resistant starch or MSPrebiotic, is a type of dietary fiber that comes from potatoes. It's called "resistant" because it resists digestion in the stomach and small intestine, allowing it to reach the colon intact. This unique property makes it a valuable prebiotic, which means it feeds the beneficial bacteria in your gut.
Health Conditions Potentially Treated with Potato Starch
Researchers are exploring the use of potato starch in treating various health conditions:
- Cancer treatment side effects: It's being studied in patients undergoing cancer treatment with dual immune checkpoint inhibitors (ICIs) for solid tumors.
- Gulf War Illness (GWI): This condition affects many veterans who served in the Persian Gulf War, causing symptoms like pain, fatigue, and gastrointestinal issues. Potato starch is being investigated as a potential treatment for GWI-related gut dysfunction.
How Potato Starch Works
Potato starch works by influencing the gut microbiome, which is the collection of microorganisms living in your digestive tract. Here's how it functions:
- Prebiotic effect: It serves as food for beneficial gut bacteria, potentially improving the balance of your gut microbiome.
- Short-chain fatty acid production: When bacteria in your colon ferment the potato starch, they produce beneficial compounds called short-chain fatty acids (SCFAs).
- Modulation of gut environment: By changing the composition of gut bacteria and increasing SCFA production, potato starch may help reduce inflammation and improve overall gut health.
Dosage and Administration
The dosage of potato starch can vary depending on the specific study or condition being treated. Here are some examples from ongoing research:
- For cancer patients: 20g of potato starch once a day for 3 days, then increasing to 20g twice a day, continuing throughout treatment (about 13 weeks).
- For Gulf War Illness: A gradual increase starting with 4g daily for 4 days, then 7g for 3 days, and finally 10g daily from day 8 onwards for a total of 4 weeks.
It's important to note that potato starch should be mixed into cold or room temperature foods or beverages and should not be heated. Additionally, it should be taken at least 2 hours before or after any medications.
Potential Benefits
While research is ongoing, potato starch may offer several potential benefits:
- Improved gut health and microbiome composition
- Reduced inflammation in the gut
- Alleviation of gastrointestinal symptoms associated with conditions like Gulf War Illness
- Potential improvement in overall quality of life for individuals with certain health conditions
Safety and Side Effects
Potato starch is generally considered safe and well-tolerated. However, as with any supplement, there may be potential side effects or risks:
- Mild gastrointestinal discomfort, especially when first starting the supplement
- Possible interactions with medications (hence the recommendation to take it 2 hours apart from other drugs)
Researchers are closely monitoring for any adverse events in ongoing studies to ensure the safety of potato starch supplementation.
Ongoing Research
Several clinical trials are currently underway to further investigate the potential benefits of potato starch:
- A study examining its use in cancer patients receiving immunotherapy, focusing on how it might affect treatment side effects and the gut microbiome.
- Research on its effectiveness in alleviating symptoms of Gulf War Illness, particularly gut-related issues.
These studies aim to provide more concrete evidence on the effectiveness and safety of potato starch as a dietary supplement for various health conditions.