Laxatives vary based on how they work and the side effects they have. Certain stimulant, lubricant and saline laxatives are used to evacuate the colon for rectal and bowel examinations, and may be supplemented by enemas under certain circumstances. Sufficiently high doses of laxatives may cause diarrhea.
Most vegetables, with the exception of onions, mushrooms and tomatoes, should be blanched briefly before being dehydrated to limit discoloration and the risk of food-borne illnesses. You can dehydrate tomatoes, carrots, beets, greens, beans, squash, onions, peas, celery, corn, pumpkin and broccoli with good results.
Simple carbohydrates are not always bad and also exist naturally in foods that do provide nutritional benefits, notably fruits, milk and other dairy products. Most fruits contain good levels of fibre, vitamins and micro minerals as well as antioxidants.