Sources of harmful acids in the body: Bashny.Net

 - Uric acid - from the excessive consumption of meat (especially when combined with strong drink)
 - Lactic acid - exertion
 - Tannic acid - from drinking black tea and coffee
 - Sulphuric acid - in severe flatulence
 - Aspirin - from the system receiving
painkillers  - Acetic acid - by use and confectionery fat (margarine, palm oil)
 - Oxalic acid - by excessive use, such as rhubarb, spinach, heat-treated / sorrel and cocoa (chocolate)
 - Hydrochloric acid - stress, fear, irritation
 - Nitric acid - from the salty meat and cheese and potassium nitrate preservatives (especially in vacuum-packed)
 - Nicotine (having a pronounced acidic) - smoking.