Supplementing nutrients will take at least several months

There is no one-size-fits-all "minimum duration" requirement for nutrient supplementation. It can be replenished in as little as 2 to 4 weeks, or as slowly as 3 to 6 months or even longer. It is completely related to the type of supplemented nutrients, the degree of one's own deficiency, and the level of daily consumption.

Water-soluble nutrients such as common B vitamins and vitamin C are metabolized quickly and have small reserves in the body. If they are really lacking, supplementation will be very effective. A while ago, I came into contact with an Internet operator who worked overtime for more than a month. His oral ulcers recurred for almost two weeks. His serum vitamin B12 was nearly one-third lower than the normal value. He followed the doctor's advice and took 10 μg of B12 plus B complex every day. After the third week, he returned to the normal range after a review, and the ulcer did not recur. If your gums bleed easily due to vitamin C deficiency, you can usually see significant improvement within 1 to 2 weeks of supplementation.

Of course, not all nutrients are replenished so quickly. You must have encountered situations where you have not seen any changes after supplementing for several months. Nutrients such as vitamin D, iron, and calcium are either fat-soluble and metabolized slowly, or the body's reserves need to be replenished before changes in indicators can be seen, which naturally takes a long time. For example, for people with moderate iron deficiency anemia, even if they take iron supplements regularly, it usually takes 2 to 3 months for hemoglobin to rise to normal levels. After that, they need to supplement for another 1 to 2 months to replenish their iron reserves, otherwise they will easily fall back to the deficiency state as soon as they stop. There is also vitamin D that many people are now deficient in. If the 25-hydroxyvitamin D is found to be only a dozen ng/ml, it will basically take 3 to 6 months to rise to the sufficient line above 30ng/ml if a daily supplement of 1000IU is taken.

There are always two different views in the nutrition circle on the duration of supplementation. One group insists on "supplementing when there is a shortage and stopping when there is enough." As long as the symptoms disappear and the blood-related indicators return to the normal range, supplementation can be stopped and maintained by a balanced diet. There is no need to stick to the time point of several months.； The other group believes that if it is difficult to meet the recommended amounts of nutrients in your daily diet, such as eating takeaways that are heavy in oil and salt all year round, seldom sunbathing, or being vegetarian for a long time, then long-term supplementation in small doses is more secure, and you don’t have to make up for it for several months before stopping.

To put it bluntly, it's like replenishing the water storage tower at home. If the water level is only a little short, and there are usually no leaks, you can turn on a small faucet and leave it for a day or two and it will be full.； If the water level is about to bottom out and there are still several small holes at the bottom of the tower that are constantly leaking - for example, if you stay up late every day, drink alcohol, eat high-sugar foods to consume nutrients like crazy, and your gastrointestinal absorption is not good enough, then you may not be able to reach a safe water level after several months of irrigation.

Don’t believe the merchant’s saying that “no matter what supplement you take, you must take it for 3 months before it is effective.” If you are not lacking in this nutrient at all, for example, you have eaten enough fish, eggs, and milk every day, and you follow the trend and buy collagen peptide supplements, let alone 3 months, supplementing for half a year may not show any obvious effects, which is a complete waste of money. If you really need to make up for it, it is better to do a targeted nutritional screening first, make up for whatever is missing, and then reexamine after 1 to 2 months. Once the indicators are up, you will reach the standard, and there is no need to compete with time.