Definition of common for Students. 1  1 : affecting, belonging to, needed by, or used by everybody for the common good a common room. 2  2 : shared by two or more individuals or by the members of a family or group a common ancestor. 3  3 : 1general 1 common knowledge. 4  4 : occurring, appearing, or used frequently a common sight a common name.
1 Apple cider vinegar is highly acidic. 2  The main ingredient is acetic acid, which is quite harsh. 3  You should always dilute it with water or juice before swallowing. 4  Pure, straight apple cider vinegar could damage your tooth enamel or the tissues of your mouth and throat. Apple cider vinegar is highly acidic. 2  The main ingredient is acetic acid, which is quite harsh. 3  You should always dilute it with water or juice before swallowing. 4  Pure, straight apple cider vinegar could damage your tooth enamel or the tissues of your mouth and throat.
Apple Vinegar Side Effects #1: Weaken Tooth Enamel. Highly acidic drinks like apple cider vinegar can weaken tooth enamel. To protect yourself, never drink vinegar straight. Dilute it with water to drink it. After you are finished, get a glass of fresh water and rinse your mouth out to remove the acid from your teeth.Do not brush your teeth until you have rinsed, as brushing while the vinegar is still on your teeth is more likely to damage the enamel. Apple Vinegar Side Effects #2: Burn Skin and Throat.ilute it with water to drink it. After you are finished, get a glass of fresh water and rinse your mouth out to remove the acid from your teeth. Do not brush your teeth until you have rinsed, as brushing while the vinegar is still on your teeth is more likely to damage the enamel. Apple Vinegar Side Effects #2: