Apple cider vinegar is just a very healthy food additive. The only conclusive evidence of any medical benefit from it is that it has minor benefits to those with diabetes. It will NOT help you lose any significant amount of fat.
Acai Berries are just another fruit. They have no proven medical benefits whatsoever. Pomegranates, Concord grapes, blueberries, and red wine all have far more antioxidants. They will NOT help you lose any significant amount of fat.
Detox pills, and detoxification and cleansing in general, are neither useful nor necessary unless you have had long-term narcotic use. Detoxification and cleansing has no proven medical benefits for the average person whatsoever. It will NOT help you lose any significant amount of fat.
The only thing that will help you lose weight is a healthy lifestyle that consists of a proper diet and frequent exercise.