Many people wonder: does expired echinacea still work? While the product has not been clinically tested, manufacturers say it may be effective in reducing the symptoms of the common cold and flu. Studies show that echinacea can act as an antiseptic and wound healer, but no one has proven this yet. Although many people swear by the herb, there is still no scientific proof to support these claims.
The only way to be sure that echinacea is safe is to talk to your doctor. It can cause minor side effects, such as upset stomach, nausea, and dizziness. However, it can also cause serious allergic reactions and even worsen the symptoms of asthma. People with allergies to the daisy family should avoid echinacea, since it may interact with immunosuppressive drugs.
The effectiveness of echinacea in fighting cancer is still under study. Some studies suggest that it can improve the immune system, lower inflammation, and kill bacteria and viruses. However, there is no human evidence that echinacea can cure cancer. But it may help relieve the side effects of radiotherapy and chemotherapy. While the herb has been used as a complementary therapy for centuries, it still lacks the scientific evidence to support its claims.
A recent study found that echinacea purpurea failed to induce a nonspecific immune response in healthy young men, despite the fact that the product had previously been published. This double-blind placebo-controlled crossover study was conducted by Shah SA, Sander S, and Soon SL. Lastly, Crawford RI reported on a case of recurrent erythema nodosum after echinacea treatment.
Expiration dates are a big concern for supplement makers and consumers alike. Expired supplements can be potentially harmful due to moisture, mold, and temperature variation. When buying vitamins, choose those that are formulated to prevent degradation. The type of expiration also matters. If you’re looking for a vitamin or supplement with a shelf life of three years, the best bet is to buy one formulated with the same expiration date as the original.