The phrase "addition to these benefits" means something that is an extra advantage or perk, in addition to what has already been mentioned. Full definition
In addition to the benefits of not having heat periods and unwanted offspring, the animal's tendency to roam is decreased. (oregonvma.org)
There are many health benefits associated with this home remedy in addition to the benefits of drinking plenty of liquid throughout the day to stay hydrated. (healthcare-online.org)
In addition to benefiting from a growing demand for counseling services, marriage and family therapists are compensated quite well. (allpsychologycareers.com)