Digestive Enzymes. No matter what specific foods we eat, our diets are composed of protein, fat and carbohydrates. Digestive enzymes break down protein, carbohydrates and fats into progressively smaller components. Enzyme supplements normally contain amylase, protease and lipase. Cellulase, lactase, malt diastase, invertase (sucrase), glucoamylase, bromelain and papain may also be included in digestive products. These enzymes increase the level of digestion in the stomach, increasing the amount of food broken down.
Still, you'd be surprised at how much you can safely discard. Here is what you should keep and how long you should keep it. Three Years. Keep your federal and state income tax returns and related receipts and statements for at least three years.
You must keep all of your records for a minimum of three years from the due date of the return to which those records relate, or the date the return is filed, if later. You must make the records available to the Tax Department upon request.