Seasonal allergies are no fun, but did you know that some experts say that what you eat may have an impact?
Also known as "hay fever," symptoms run the gamut from a runny nose to congestion.
Jenna Volpe, a registered dietitian nutritionist (RDN) of WholeisticLiving.com in Austin, Texas, noted that while more research is needed, she’s found there are certain functional foods and herbs that can help provide natural relief without unwanted side effects for many seasonal allergy sufferers.
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Ahead, a look at six such foods that may help with seasonal allergies.
If you're feeling symptoms from allergies, try snacking on some Brussels sprouts or add to your dinner as a side dish.
"Vitamin C is a water-soluble micronutrient found in many vegetables. It can play several important roles in the body, like fighting allergies, as it helps to regulate the body’s natural inflammatory responses," said Katie E. Golden, MD, medical editor at GoodRx (GoodRX.com) in Charlotte, North Carolina.
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"Vegetables particularly high in vitamin C include red peppers and cruciferous vegetables — like broccoli, cauliflower, cabbage and Brussels sprouts," she added.
You can pick up this potent plant at your local health food store, but be sure to consult your doctor before incorporating stinging nettle leaves into your diet.
"Stinging nettle leaves (aka "nettle"; Latin name: Urtica dioica) as tea, tincture or capsules have been found in clinical studies to provide natural relief for many people with allergic rhinitis," said Volpe.
"While the exact mechanisms are unknown, it's been speculated and hypothesized that nettle has a mild anti-histamine effect in the body," she said, adding that from a constitutional standpoint, nettle leaves are naturally drying to the tissues of the body, which is advantageous for people with symptoms of allergic rhinitis such as a runny nose, or excessive mucus production in the throat/lungs.
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Volpe recommends enjoying dried stinging nettle leaf tea infusions – combining one teaspoon dried loose-leaf nettle per eight ounces of water, and steeped for at least 15-20 minutes.
She also said you can have sautéed nettle leaves with garlic/onion powder, olive oil, and sea salt for a nutritious side dish.
Stinging nettle are common in some forests in the U.S., though the U.S. Department of Agriculture advises that while "young stinging nettle leaves can be eaten if cooked properly," you should never eat its flowers.
The Icahn School of Medicine at Mount Sinai in New York, says several side effects can occur, such as upset stomach, fluid retention or diarrhea (hives or rash from topical use of stinging nettle).
"Because nettle can alter the menstrual cycle and may contribute to miscarriage, pregnant women should not use nettle," the Mount Sinai blog states.
"The use of herbs is a time-honored approach to strengthening the body and treating disease," the blog continues "However, herbs can trigger side effects, and can interact with other herbs, supplements, or medications. For these reasons, you should take herbs with care, under the supervision of a health care provider."
In addition to oranges, don’t overlook other citrus like clementines or grapefruit (the latter if it doesn’t interact with any medications you may take, advised Golden).
"There are a number of different fruits that contain vitamin C, which is known to support the immune system," said Golden. "Oranges, for example, are a fruit that contains vitamin C and small studies show it may be helpful for allergies."
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Volpe said she's a fan of raw honey for its purported health benefits, some of which may prove helpful for seasonal allergy symptoms.
"Some studies suggest that consuming local raw honey or raw manuka honey daily in certain quantities can help provide natural allergy relief for those with seasonal allergies," she said.
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"Raw honey contains high levels of propolis, a constituent found to have lots of health-promoting properties including the inhibition of mast cells (the type of immune cells involved in allergic reactions)," Volpe explained.
Despite these findings, Volpe stressed that more research is needed to confirm this.
"In my anecdotal observation and experience, I don't think consuming raw honey (unless daily in significant quantities) is as effective as other alternative methods for preventing and managing seasonal allergy symptoms.," Volpe said.
Try raw honey on its own or in overnight oats, oatmeal, in smoothies or in yogurt, suggested Volpe.
Volpe highlighted that quercetin — a type of antioxidant found in many types of fruits and veggies — is well-researched and is often used in functional nutrition and functional medicine to help pacify an overactive histamine response in the immune system.
"Quercetin in clinical research has been deemed effective for supporting people with allergic rhinitis (AR) naturally, so it would make sense that eating quercetin-rich foods such as red onions, asparagus, and raw capers regularly would help on some level," she said.
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Try adding red onions into salads, sandwiches or your favorite salsa recipe, said Volpe.
Curious to go the capers route?
"Adding capers to foods may be contraindicated for some people who need to limit sodium, but could be helpful in moderation for some people with seasonal allergies," said Volpe.
Since it’s such a superfood, consider incorporating quercetin-rich kale into your at-home recipes.
While Golden cautioned that there’s no particular food that has been 100% proven to help with allergies, many vegetables are rich in nutrients that are known to have anti-inflammatory properties and so, they may be helpful.
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"For example, quercetin — a plant pigment that can be found in kale, spinach, broccoli and onions — acts as an antihistamine compound," she explained.
Consult with your doctor before changing your diet or adding any new herbs to your routine.
