The composition of royal jelly (percentage-wise) may also vary based on season and cultivar, hence the wide range of possible macronutrient content. 1  The composition of Royal Jelly, by weight, appears to be similar to a food product in where a good portion of the weight comes from macronutrients. As such, Royal Jelly supplementation confers a protein content and has a caloric value to it and may be treated as a food product similar to a protein-rich honey
Synonyms for Tricky: cunning (adjective) artful, astute, calculating, canny, clever, crafty, cunning, deft,
The definition of tricky is  something that must be done carefully with great skill, or someone who is known to be deceitful. An example of something tricky is parallel parking. An example of someone tricky is a con artist who can talk his way out of any situation.