Diet for Portal Hypertension (Cirrhosis With/Without Ascites and Hepatic Encephalopathy)
Dietary management for portal hypertension should focus on preventing malnutrition while using sodium restriction for volume-overload complications such as ascites. Low-protein diets are not recommended for hepatic encephalopathy (HE). [1],[2]
Medication-Related Nutrition Constraints
Alcohol intake should be avoided in patients with cirrhosis and portal hypertension. [2]
Medication-Neutral Dietary Priorities
Caloric intake should be maintained to prevent sarcopenia. [2] Fasting should be minimized. [2]
Sodium Restriction for Ascites and Volume Overload
Sodium restriction should be used for patients with ascites. [1],[3] A moderate sodium intake target of approximately 60 mmol/day is recommended in ascitic cirrhosis when sodium restriction is used. [3] Sodium restriction should be balanced against maintaining palatability and adequate energy and protein intake. [3]
Protein Intake and Hepatic Encephalopathy
Low-protein nutrition should be avoided in patients with HE. [1] Milk-based protein or vegetable protein or branched-chain amino acid (BCAA) supplementation should be used rather than total protein reduction when dietary modulation is needed in HE. [1] Oral BCAA formulations can be used to treat HE and can improve nutritional status in patients with cirrhosis. [1]
Protein and Energy Targets for Stable Cirrhosis
Adults with cirrhosis who are clinically stable should target 1.2–1.5 g protein/kg ideal body weight (IBW)/day. [2] Protein intake should not be restricted in patients with HE, while protein sources should include a range of proteins such as vegetable and dairy sources. [2] Fasting time should be minimized with a goal of 3–5 meals per day and an early breakfast and/or late-evening snack. [2]
Common Pitfalls to Avoid
Prolonged low-protein restriction in HE should be avoided due to risk of malnutrition and muscle loss. [1] Overly restrictive low-sodium diets should be avoided when they reduce overall intake due to reduced palatability, because inadequate energy and protein intake increases risk of malnutrition. [3]
Dietary Implementation Considerations
Referral to a registered dietitian should be used to tailor intake goals, especially in patients with weight loss, sarcopenia, or ascites. [2] Sodium restriction should be liberalized if nutritional targets cannot be maintained. [2] BCAA-enriched formulations and nutritional support should be considered when oral intake is insufficient to meet nutrition goals. [1],[3]