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Vitamin B1 Requirement
	B1 (thiamine, aneurin) is needed for release of energy from carbohydrates; aids in functioning of nervous system; helps maintain stomach acidity and normal appetite. Thiamine also optimizes cognitive activity and brain function. Risk Factors Deficiency symptoms are still seen in parts of the world where white rice makes up a major part of the daily diet. Those at greatest risk of deficiency include some young children and teenagers, stressed adults, those who exercise very heavily, alcoholics, pregnant women, those on restrictive diets and people suffering from malabsorption diseases, who are not supplemented with any B1. Marginal deficiencies, without clinical symptoms, can be common among these groups. Signs & Symptoms Elderly people are at risk of thiamin deficiency and this may lead to reduced mental functioning, depression, weakness, suppressed immunity and gastrointestinal problems. Early thiamin deficiency may be easily overlooked as the symptoms are generalized and can include fatigue, depression and stress-induced headaches. Deficiency symptoms include: poor circulation with cold hands and feet edema (fluid retention) furrowed tongue underactive thyroid fatigue depression, apathy insomnia anxiety over-sensitivity to pain and noise nausea poor memory weight loss weak and painful muscles, especially the legs, starting with numb, burning feet, later affecting calves and thighs, may result in paralysis severe gastrointestinal disturbances tachycardia (fast pulse) brachycardia (slow pulse) at rest enlarged and weak heart dyspnoea (breathlessness) on exertion mental illness multiple sclerosis diabetes hypoglycemia allergies addictions - drugs, alcohol Severe thiamin deficiency causes beriberi. Beriberi can affect the cardiovascular system (wet beriberi) and the nervous system (dry beriberi).
Vitamin B1 Requirement is linked to:
	Alcohol-related Problems