How long can you take vitamin C after the expiration date? While vitamin C is likely not dangerous to take after its “use by” date, it almost certainly will have lost potency. One April 2019 study in the Brazilian Journal of Pharmaceutical Sciences found 92 percent of vitamin C supplements have significant losses in concentration amounts after 12 months of storage.
Are expired vitamins still effective? Expired vitamins are safe to take. At the expiration date, the product should still contain 100% of the dietary supplement ingredients listed on the label,2 as long as it was stored under correct conditions.
How long can you use after expiration date? Stores use this date to know when to remove products from shelves. You can eat food after the sell-by date. For example, dairy products are good for 1 week after the sell-by date. Eggs are safe for 3 to 5 weeks after the sell-by date.
How often should I drink vitamin C? The recommended daily amount for vitamin C is 75 milligrams (mg) a day for women and 90 mg a day for men. During pregnancy, 120 mg a day are recommended. The upper limit for all adults is 2,000 mg a day.