Fruits, vegetables, bread, pasta, and cereals.
Phenylketonuria is an inherited disorder. About one in every 15,000 infants born in the United States has PKU. People who are born with PKU are normal in every way except to stay healthy they must follow a strict diet which limits phenylalanine, a common part of most food. People with PKU have an inactive liver enzyme.  The diet for PKU consists of a phenylalanine-free medical formula and carefully measured amounts of fruits, vegetables, bread, pasta, and cereals. Many people who follow a low phenylalanine (phe) food pattern eat special low protein breads and pastas. They are nearly free of phe, allow greater freedom in food choices, and provide energy and variety in the food pattern. With formula, a person with PKU gets plenty of protein, without the side effects of the high phe content of most foods. The phenylalanine-free formula is the most important part of the diet for PKU. Phenylketonuria (PKU) is an inborn error of metabolism involving impaired metabolism of phenylalanine, one of the amino acids. Untreated PKU can lead to intellectual disability, seizures, and other serious medical problems. Depending on the level of phenylalanine and tolerance for phenylalanine in the diet, PKU is classified into two different types: classic, which is the severe form, and moderate. Therefore, each patient needs an individualized treatment plan. Phenylketonuria (PKU) is a rare genetic condition in which the body cannot break down the essential amino acid phenylalanine. Amino acids are the building blocks of protein. Phenylalanine is found in all proteins and in some artificial sweeteners.  2 Protein Supplement People without PKU get all the protein they need from the food they eat. Because protein intake is low in the diet for PKU, a protein supplement is needed to make up what is missing from not eating foods high in protein. For people with PKU the protein supplement is essential. Protein is made up of building blocks called amino acids. Phenylketonuria (PKU) is a condition in which the body is unable to break down one of the protein building blocks from the diet; the amino acid called phenylalanine (phe). In PKU the phe cannot be metabolised normally and builds up in the blood and tissues. Definition. Phenylketonuria (fen-ul-ke-toe-NU-re-uh), also called PKU, is a rare inherited disorder that causes an amino acid called phenylalanine to build up in your body. PKU is caused by a defect in the gene that helps create the enzyme needed to break down phenylalanine. Without the enzyme necessary to process phenylalanine, a dangerous buildup can develop when a person with PKU eats foods that are high in protein. This can eventually lead to serious health problems. For the rest of their lives, people with PKU — babies, children and adults — need to follow a diet that limits phenylalanine, which is found mostly in foods that contain protein. Babies in the United States and many other countries are screened for PKU soon after birth. People with PKU—babies, children, and adults—need to follow a diet that limits the amount of Phe, which is found in large amounts in high-protein foods such as chicken, meat, eggs, dairy, nuts, grains, and legumes. Phenylketonuria (PKU), or phenylalanine hydroxylase (PAH) deficiency, is a lifelong, inborn error of metabolism that causes an amino acid, known as phenylalanine (Phe) to build up in the blood. Phenylketonuria (commonly known as PKU) is an inherited disorder that increases the levels of a substance called phenylalanine in the blood. Phenylalanine is a building block of proteins (an amino acid) that is obtained through the diet. It is found in all proteins and in some artificial sweeteners.  PKU is a treatable condition. Phenylalanine is found in the protein part of the food we eat. The treatment is a low protein diet. This means that high protein foods such as meat, cheese, poultry, eggs and milk are not permitted. Instead the diet is supplemented with artificial protein which contains no phenylalanine. Phenylketonuria (pronounced fen-l-kee-toh-NOOR-ee-uh), often called PKU, is an inherited disorder that that can cause intellectual and developmental disabilities (IDDs) if not treated. In PKU, the body can't process a portion of a protein called phenylalanine, which is in all foods containing protein. Depending on the level of phenylalanine and tolerance for phenylalanine in the diet, PKU is classified into two different types: classic, which is the severe form, and moderate. Therefore, each patient needs an individualized treatment plan.
http://depts.washington.edu/pku/about/whatispku.html http://depts.washington.edu/pku/about/diet.html http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002150/ http://www.healthline.com/health/phenylketonuria http://www.wch.sa.gov.au/services/az/other/nutrition/documents/Low_Protein_Diet_for_PKU_2013.pdf http://www.mayoclinic.org/diseases-conditions/phenylketonuria/basics/definition/CON-20026275 http://www.pku.com/understanding-pku/what-is-pku/ http://ghr.nlm.nih.gov/condition/phenylketonuria http://www.nspku.org/information/whatispku http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002150/
what is PKU diet