Eating too much of these nutrients (drugs) will definitely lead to poisoning or other adverse reactions, so don't exceed the usage and dosage of the drug (product) instructions when eating.

If several drugs are taken together, we should pay great attention to whether the components of these drugs overlap, otherwise each drug will be taken according to its own usage and dosage, which will also lead to overdose.

For example, taking Tomson's children's vitamin A and vitamin D soft capsules, taking calcium containing vitamin A and vitamin D, and taking cod liver oil (which is rich in vitamin A and vitamin D) are likely to cause overdose.