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Table 5: Major studies recommending use of nutrition supplementation
             Study                              Recommendations                      Outcomes
                          [32]
             Bories and Campillo  (1994)         40 kcal/kg per day    Protein and energy intakes were significantly higher;
                                                                                improved nutritional satus;
                                                                              improved biochemical parameters
             Hirsch et al.  (1993)        1,000 kcal and 35 g of nitrogen/day for  Need for hospitalization was significantly lower in the
                     [81]
                                                     1 year                         supplemented;
                                                                            reduction of infectious complications;
                                                                           a lower mortality in the therapeutic group
                        [82]
             Mendenhall et al.  (1993)           > 2,500 kcal/day       51% mortality in severe malnourished patients with
                                                                                inadequate caloric intake;
                                                                       19% mortality in patients who received adequate oral
                                                                                      nutrition
                       [83]
             Le Cornu et al.  (2000)         Nutritional supplementation to   Did not increase overall dietary energy or protein intake
                                              pre-transplant candidates  and did not significantly improve post- transplant
                                                                       outcome; regular dietary counselling is as effective in
                                                                                 increasing energy intake
             Kawaguchi et al.  (2008)       200-kcal nutritional supplement  Stress scores for physical and mental symptoms were
                        [84]
                                                                        significantly lower compared to those in the fasting
                                                                                       group

            was given in amounts of 35-40 kcal/kg per day plus protein   serum levels.  Hypovitaminosis A has been linked to night
                                                                        [50]
            up to 1.6 g/kg per day. In patients with encephalopathy,   blindness, impairment in immune function, and also to an
            transient protein restriction can be instituted, but after   increased risk of hepatic fibrosis [Table 4]. If malabsorption
            a few days adequate nutrition should be reinstituted.   is suspected as a prime contributor to depletion, doses
            Patients in coma (encephalopathy grade III-IV) can safely   of 25,000-50,000 IU 3 times per week may be needed for
            be given total parenteral nutrition (TPN) regimens providing   repletion.  Vitamin A  supplementation  improves  the  sense
            25-30 kcal/kg per day from non protein energy plus 1.0 g/kg   of taste and thereby may also improve dietary intake of the
            per day using BCAA-enriched solutions. Fasting periods   patients.  Inadequate intake of calcium and vitamin D and
                                                                     [14]
            should not exceed 6 h due to the limited glycogen stores   losses from malabsorption and renal excretion are related
            in malnourished cirrhotic patients. Generally, the oral or   to lower serum levels of albumin and magnesium.  If the
                                                                                                      [49]
            enteral routes are preferred. Parenteral nutrition should   individual is unable to increase dietary intake to a consistent,
            only be used when enteral feeding is not possible or   adequate level of 1,000-1,500 mg/day, supplementation
            impractable [Table 3]. [45]                       should be initiated, especially in those with suspected low
                                                              bone mineral density. Osteoporosis has been confirmed in
            Micronutrients requirements                       17-23% of patients with liver disease. The role of vitamin D
            Micronutrient deficiency has been observed in 10-50% of   and calcium on bone mass in the setting of liver disease is
            patients with cirrhosis. Multivitamin supplements may be   unclear.  Serum levels should be monitored in 3 months to
                                                                    [51]
            considered in these patients. [48]                assess tolerance and success of repletion. Low serum levels of
                                                              vitamin D are thought to be the result of poor dietary intake,
            Vitamins                                          malabsorption from cholestasis, pancreatic insufficiency, and
            Various vitamins deficiency occurs in LT recipients like folate   decreased sunlight  exposure.  Supplementation usually
                                                                                      [52]
            deficiency is due to a combination of decreased intake,   begins at 400 IU per day, with some patients requiring up to
            decreased absorption, as well as losses from renal excretion   800 IU per day of vitamin D or 12,000-50,000 IU per day of
            and poor hepatic storage. Supplementation of folate and   ergocalciferol, with serum levels reassessed in 2-3 months.
                                                                                                           [53]
            B12 is crucial in alcoholic hepatitis to protect uninjured   Serum vitamin E levels are typically decreased in alcoholic
            hepatocytes and stimulate the repair/replacement of   patients, pancreatitis or fat malabsorption [Table 4]. A dose of
            damaged  cells  [Table  4]. The common recommendation   400 IU per day either as standard vitamin E or as α-tocopherol,
            for folate supplementation is 1 mg/day orally.  Vitamin B1   if malabsorption is suspected, should provide for adequate
                                                [48]
            deficiency is linked to primary tissue damage such as alcoholic   supplementation in most individuals. [49]
            polyneuropathy and also Wernicke’s encephalopathy. Usual
            supplementation is 100 mg/day orally or subcutaneously   Minerals
            initially for 2 weeks or until repleted, the amount in a   During the pre-LT phase patients suffer from various mineral
            standard multivitamin should be sufficient.  Deficiency of   deficiencies  because  of  metabolic  changes  due  to  liver
                                              [48]
            vitamin B6 (pyridoxine) is due to decreased intake or altered   impairment. Zinc deficiency is very common in cirrhotics.
                                                                                                           [54]
            metabolism and storage. Standard supplementation is 50-  Zinc supplementation may also be used for those patients
                                                         [49]
            100 mg/day orally, or more in severely depleted individuals.    with hepatic encephalopathy, with refractory response
            Liver stores are often depleted even in the setting of normal   to vitamin A supplementation for night blindness, and
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