Diverse characteristics of the urinary excretion of amino acids in humans and the use of amino acid supplementation to reduce fatigue and sub-health in adults

Table 1 Symptom indices based on selected items from an 86-item general health questionnaire

General Fatigue Index	Pain Index	Gastrointestinal Index	Sleep Index	Vitality Index
Individual scale items
Low in energy	Muscle cramps	Abdominal pain	Prolonged Sleep	Libido
Trouble concentrating	Face pain	Diarrhoea	Trouble falling asleep	Night sweats
Muscle weakness	Neck Pain	Constipation	Trouble awakening	Cravings
Forgetfulness	Shoulder pain	Irritable bowel	Disturbed sleep
Everything an effort	Arm pain	Gastric reflux	Mental fatigue
Mental confusion	Muscle soreness
	Heavy limbs

ISSN: 1475-2891