Why is it effective to eat melatonin at first, but it is ineffective to continue eating it?

I took melatonin myself for two years. Tell me about my personal feelings!

I think it varies from person to person! Some people have a good effect after taking it at first, and some people will have an effect after taking it at first, but the effect will be worse after continuing taking it. Taking health care products has a process:

That is, improvement, adjustment, further improvement and readjustment. Some people have entered the adjustment stage for a long time, and the effect is not so obvious. Some people adjust faster and improve faster.

Then the effect is more obvious. Another reason is that the metabolism, secretion, absorption and excretion of melatonin are different, and there are also individual differences.

Some people lack melatonin, which is improved after taking melatonin. If they still take it at a constant dose, it often means that the dose is too large and the effect is not good.

At this time, you can continue to reduce the dosage as appropriate, and the effect will get better. I am the kind of person who takes it well at first, and then the effect will get worse.

This has something to do with my own physique. Poor absorption. Then I adjusted the dose and took it again. Now the effect is satisfactory.