The clearest takeaway is that winter cold remedies are mostly about marginal gains, not prevention. Zinc stands out because there is some evidence it can shorten the misery of cough and runny nose by a day or two when taken early, even though it does not stop colds from starting or make them less common overall. That matters because the real editorial lesson is to separate modest symptom relief from the much bigger promise of avoiding infection altogether.
Vitamin C sits in the same category of partial benefit. It is useful for healing and other bodily functions, yet the cold data are weaker: it does not prevent colds, but studies suggest it may trim adult duration by about 8%, or roughly half a day, with children possibly gaining more. Combination products such as Emergen-C and Airborne trade on the same logic. Meanwhile, hot tea, chicken soup, and honey may comfort, but their value appears mainly supportive rather than curative.
The strongest limitation is that none of these approaches is a silver bullet, and even the more plausible supplements have uneven evidence and small effects. Echinacea may help prevention only if taken regularly for months, and even then the reported gain is preventing one in ten colds, which is hardly dramatic. That makes sleep, diet, exercise, lower stress, and not overdoing workouts the more defensible long-game strategy, alongside basic infection control like handwashing and covering coughs when infectiousness is highest.
Itโs all in your head
One of the best things about working in a newsroom is information shared by colleagues. When you cover health, a lot of the conversation centers around medical conditions. When itโs winter, that means the common cold.
The Bloomberg health team recently turned to what wฬถoฬถrฬถkฬถsฬถ we use in hopes of preventing and treating infection. I figured a fact check was in order.
Bottom line: Thereโs no silver bullet. The only way out is through. But you may be able to hasten the trip. Slightly. Your mileage may vary.
The approach that got the most love among the US health crew was zinc, especially when used early. There appears to be evidence to back that up. While zinc doesnโt prevent incipient colds, reduce their overall number or lessen their severity, there is some data showing it could shave a day or two from the misery of a cough and runny nose.
Vitamin C was No. 2 on the US list. It helps with healing, the formation of bones and muscle and it may even improve mood. Globally, sales exceed $2 billion. But a cold? The science is much less robust. It doesnโt prevent them, though studies suggest it could trim their duration by 8% for adults โ roughly half a day. Children may benefit more.
There are also products like Emergen-C and Airborne that combine vitamins and minerals to boost the immune system. Iโm starting to see a research trend here: Thereโs no impact on prevention, but some suggestion that these supplements could curb length and severity.
Other alternatives from the global Bloomberg health team include hot water or tea โ willow bark, linden flower, fennel or thyme โ perhaps with honey and/or lemon. Chicken soup remains popular. One colleague suggested hanging an onion bag next to the bed. (The US National Onion Association says this isnโt a proven deterrent.)
Echinacea may help with prevention, but you have to take it regularly for months to prevent 1 out of 10 colds, says Bruce Barrett, a family physician whoโs researched the topic for years at the University of Wisconsin, Madison.
Barrett recommends that you nurture yourself with regular exercise, a good diet and plenty of sleep. Starting to feel that tickle in your throat? Dial back your stress and donโt overdo it. He suggests cancelling half your meetings and paring down your workout.
โBeing healthy is the main way to avoid infection, and reduce the severity and duration of illness when you do get sick,โ he says, pointing out that some people donโt get infected even when they are intentionally exposed to a virus in a lab. Those people generally report lower stress levels, he says.
In the end, you should do what makes you feel better. Thatโs subjective, and personal. But do cover your cough and wash your hands, especially at the beginning of a cold when youโre most infectious.
As for me, I just suffer. โย Michelle Fay Cortez