As for the collection of royal jelly, it is usually done during the breeding season of bees, which is spring or summer. Because bees are more active at this time of the year, the production of royal jelly is relatively high. So in terms of collection results, spring and summer may be the time to get more royal jelly.
However, from a nutritional standpoint, the composition of royal jelly may change from season to season. Royal jelly in the spring is more loaded with proteins and vitamins, while royal jelly in the fall may be richer in some other nutrients. Therefore, choosing the season for royal jelly depends on one's needs and health condition.
Overall, both spring royal jelly and fall royal jelly are rich in nutrients. The season of choice for royal jelly should be based on the needs and goals of the individual and can be based on related health issues. This choice is best made by consulting a doctor or professional for advice.