Dietary Approaches in the Management of Adrenoleukodystrophy: Evidence Summary for Nutritional Tips

TL;DR

This paper reviews dietary strategies for managing adrenoleukodystrophy, a genetic disorder, and highlights the role of nutrition in reducing harmful fatty acids and improving patient outcomes.

Contribution

The paper introduces novel dietary approaches like the 'Bambino Diet' and supplements that show promise in reducing VLCFA levels.

Findings

VLCFA restriction alone is insufficient due to endogenous synthesis.

The 'Bambino Diet' and similar supplements reduce VLCFA plasma levels and improve lipid profiles.

Personalized nutritional interventions are needed due to increased malnutrition risk in X-ALD patients.

Abstract

Background: Adrenoleukodystrophy is a rare, inherited X-linked disease related to mutations in the ABCD1 gene. Peroxisomal β-oxidation is impaired, underpinning the tissue accumulation of very long-chain fatty acids (VLCFAs), especially in the central nervous system (i.e., the white matter and axons), adrenal glands, and testes. VLCFA accumulation contributes to oxidative stress, neuroinflammation, and progressive demyelination, leading to severe neurological sequelae. Though gene therapies and drug development are advancing, dietary management may still play a crucial role in modulating lipid metabolism and mitigating disease progression. Methods: A narrative review of studies published up to May 2025 in major scientific databases was conducted, focusing on biochemical and clinical outcomes, including VLCFA plasma modulation and nutritional status. Results: VLCFA restriction alone has shown limited efficacy due to the counteractive effect of endogenous synthesis. “Lorenzo’s Oil” inhibits VLCFA elongation, yet with inconsistent clinical benefits. Novel dietary strategies, such as the “Bambino Diet” and innovative dietary supplements similar to Lorenzo’s Oil, composed of glyceryl trioleate, glyceryl trierucate, and antioxidants, provide promising biochemical effects, such as reducing VLCFA plasma levels and improving lipid profiles. Malnutrition risk is also increased in X-ALD patients, underscoring the need for personalized nutritional interventions. Conclusions: Dietary strategies are one of the pillars of X-ALD management, to be further combined with pharmacological, gene therapies, and hematopoietic stem cell transplantation. Future research should refine emerging therapies, assess long-term effects, and develop personalized nutritional strategies.

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