“Sixty to 80% of our immune system is in our gut and is known as the gut-associated lymphoid tissue (GALT),” registered dietitian Ella Davar, R.D., CDN, previously told mbg. That means that more than half of your immune system relies on a healthy gut, so keeping your gut microbiome balanced with probiotic foods and drinks, like ACV, is especially important for fighting off colds. While there haven’t been any studies that directly connect apple cider vinegar with immunity specifically, research published in Synthetic and Systems Microbiology in 2018 stated that probiotics, in general, are effective for fighting off colds3 and flu-like respiratory infections because they nourish the immune system. In theory, ACV, which is a natural antimicrobial2, may also be able to help kill off bacteria and viruses in your throat. In doing so, it may reduce uncomfortable inflammation and irritation, which prompts coughing when you have a cold. You can also combine ACV with other immune-nourishing ingredients, like raw honey and lemon juice, in a supercharged cold-fighting drink. Like ACV, raw honey supports the immune system4 and can coat a sore and scratchy throat5, alleviating pain and discomfort. To make the drink, combine 2 tablespoons of ACV with 2 tablespoons of lemon juice, 1 tablespoon of raw honey, and 16 ounces of warm water. Stir until the honey dissolves, then sip twice a day. Another way to take ACV is with a supplement, like Garden Of Life’s mykind organics apple cider vinegar gummies. There’s a theory that the acetic acid in the ACV may also erode tooth enamel and make you more susceptible to cavities. It’s worth noting the study that showed these results tested teeth in a lab setting6 and didn’t account for natural buffers in your saliva that protect your teeth from acids. Nevertheless, it’s important to acknowledge. You can protect yourself from the potential negative effects of ACV on your teeth by rinsing your mouth out with water directly after you take it and waiting for at least 20 minutes to brush your teeth. Apple cider vinegar may also interact with certain medications, like insulin, diuretics, or potassium-lowering drugs. If you’re taking any medications, always check in with your doctor before adding something new, like ACV, to your routine. She has written twelve books and has had more than 2,000 articles published across various websites. Lindsay currently works full time as a freelance health writer. She truly believes that you can transform your life through food, proper mindset and shared experiences. That’s why it’s her goal to educate others, while also being open and vulnerable to create real connections with her clients and readers.