Royal Digest 1L - Vergisting + PH controle - Red AnimalsROYAL DIGEST now replaces 2 old products, ROYAL TEA and DIGEST. By combining the organic acids of DIGEST (formic acid, lactic acid, propionic acid and acetic acid) and the plant extracts of ROYAL TEA, ROYAL DIGEST now combines the benefits of the 2 products. ROYAL DIGEST works mainly on the digestion and pH of drinking water and is a good substitute for apple cider vinegar. It can be given every day of the year and just avoid using it at the same time