Apple Cider Vinegar is a natural antibiotic that improves digestion, increases joint function and balances pH levels. Known widely for its benefits for preventing arthritis and improving joint flexibility, NRG Apple Cider Vinegar is a naturally fermented, unfiltered and most importantly, unpasteurised product with a broad range of health benefits for horses. This quality standard in production delivers an acidity rating of 4.5percent - 5percent - above the 4percent international standard.