While there is a lack of clinical trials testing the effects of natural remedies in treating intestinal parasites, some preliminary research suggests that some herbs and dietary supplements may have potential. Here is an overview of several key findings of the available research:
Berberine
A compound available in a variety of herbs such as European barberry (Berberis vulgaris), berberine is effective in fighting intestinal parasites in several preliminary studies. In a report published in the Iranian Journal of Parasitology in 2014, for example, berberine extracted from barberry demonstrated activity that may help protect against tapeworm infection. Along with barberry, berberine is found in herbs like goldenseal and coptis.
Papaya Seeds
For a pilot study published in the Journal of Medicinal Food in 2007, 60 children with intestinal parasites received immediate doses of an elixir containing a mixture of papaya seeds and honey or honey alone. After seven days, significantly more of those who received the papaya seed elixir had their stool free of parasites.
Pumpkin Seeds
One natural remedy that shows promise is pumpkin seeds, which are rich in amino acids, fatty acids, and the compounds berberine, cucurbitine, and palatine. Research on the use of pumpkin seeds for intestinal parasites includes a preliminary study published in the International Journal of Molecular Sciences in 2016, in which extracts from pumpkin seeds were found to have anti-parasitic activity.
Wormwood
Wormwood can help treat intestinal parasites by killing a type of helminth known as Heterobranchus longifilis, according to a preliminary study published in Parasitology Research in 2010. The herb contains compounds called sesquiterpene lactones, which are believed to 'weaken the membranes of the parasites.
Diet
Practitioners of natural medicine sometimes recommend certain dietary strategies in the treatment of intestinal parasites to optimize stomach acid, which is protective against foodborne parasites. These strategies include:
- Temporarily avoid coffee, refined sugar, alcohol, and refined grains
- Include more garlic in your meals
- Increase your intake of carrots, sweet potatoes, squash, and other foods rich in beta-carotene (a precursor of vitamin A, which can increase resistance to helminth penetration)
- Rebuild the beneficial bacteria in your gut by stocking up on foods rich in probiotics such as yogurt
- Eat foods rich in vitamins C and B
- Avoid raw meat or fish
Some practitioners also suggest a bowel cleanse or detox, an approach that involves pairing a high-fiber diet with supplements that are supposed to help your body flush out intestinal parasites. These supplements include psyllium, beets, and flax seeds.