The acetic acid present has been shown to help regulate blood sugar levels(1,2) and actually turns alkaline inside the body(1) - though it and vinegar and general are not meant to be the sole means of managing blood sugar in those with insulin sensitivity, etc. [For that matter, the food around it really counts.] Specifically, acetic acid partly inhibits the digestion of sugars and thus absorption and glucose response(2). It also lowers LDL cholesterol, apparently keeping fat formation down in the liver(1), and helps reduce feelings of hunger(2).
Apple cider vinegar helps break up fat cells, and thus is a good tool in weight loss. Enzymes in it are good for blood pressure, cholesterol, and heart health(1).
Personal product favorite:
https://shorte.isagenix.com/en-us/products/weight-loss/individual/natural-accelerator
Sources:
1. Hills, Jenny. "10 Surprising Benefits of Drinking Apple Cider Vinegar According to Science." Healthy and Natural World, Healthy and Natural World. Web 6 December 2019. https://www.healthyandnaturalworld.com/apple-cider-vinegar-benefits/
2. "Ingredient Spotlight: Apple Cider Vinegar." Isagenix Health, Isagenix Worldwide, Inc. 13 November 2018. Web 6 December 2019. https://www.isagenixhealth.net/ingredient-spotlight-apple-cider-vinegar/