Rhabdomyolysis or Severe Acute Hepatitis Associated with the Use of Red Yeast Rice Extracts: an Update from the Adverse Event Reporting Systems

Fulminant Red Yeast Rice-Associated Rhabdomyolysis with Acute Liver Injury and Hyperkalemia Treated with Extracorporeal Blood Purification Using CytoSorb

Rhabdomyolysis is a pathophysiological process characterized by the destruction of muscle cells and the release of intracellular contents into the systemic circulation, which can lead to acute kidney injury (AKI) and failure. Causes are classified mainly as traumatic and non-traumatic, with statin-induced rhabdomyolysis being widely recognized. Other causes are seldomly reported, one being red yeast rice (RYR) or its active ingredient, monacolin K. We present a life-threatening case of fulminant rhabdomyolysis with severe hyperkalemia, accompanied by ECG changes, tetraparesis, impending compartment syndrome, and liver injury requiring intensive care treatment. Prompt renal replacement therapy was commenced, initially for the treatment of hyperkalemia and subsequently for myoglobin adsorption using the CytoSorb membrane. High doses of corticosteroids were administered as the trigger factor was initially unknown. The condition gradually improved, and the patient regained full functionality. The diagnosis of toxic rhabdomyolysis was confirmed only after the patient was discharged from the intensive care unit. An over-the-counter supplement containing red yeast rice (RYR) was identified as the sole possible triggering factor, with symptoms occurring two days after beginning the self-treatment.

Scientific Opinion on additional scientific data related to the safety of monacolins from red yeast rice submitted pursuant to Article 8(4) of Regulation (EC) No 1925/2006

The Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver a scientific opinion on the safety of monacolins from red yeast rice (RYR), which have been placed under Union scrutiny in Part C of Annex III in accordance with Article 8(4) of Regulation (EC) No 1925/2006. The NDA Panel reviewed the additional scientific data submitted during the period of scrutiny, which included analytical data on the composition of RYR supplements, the intake of monacolins from other dietary sources, in vitro bioaccessibility and cytotoxicity data of monacolins vs. other statins, nutrivigilance/post-marketing data, case reports and clinical studies. Based on the new nutrivigilance data provided, the NDA Panel reiterates the concerns of the ANS Panel (EFSA ANS Panel, 2018) that exposure to monacolin K from RYR at intake levels as low as 3 mg/day could lead to severe adverse effects on the musculoskeletal system, including rhabdomyolysis, and on the liver. The NDA Panel concludes that the data submitted by interested parties during the Union scrutiny period do not allow establishing the safety of monacolins in RYR supplements below 3 mg/day or to identify a daily intake of monacolins from RYR in food supplements that does not raise safety concerns for the general population or vulnerable subgroups thereof.

Functional Foods and Nutraceuticals to Reduce the Risk of Cardiometabolic Disease: Where We Are, and Where We Are Going

Atherosclerotic cardiovascular diseases (ASCVDs) remain leading causes of mortality and disability in Western countries [...].

Dietary supplements: clinical cholesterol-lowering efficacy and potential mechanisms of action

This review aims to analyse the efficacy of dietary supplements in reducing plasma cholesterol levels. Focusing on evidence from meta-analyses of randomised controlled clinical trials, with an emphasis on potential mechanisms of action as supported by human, animal, and cell studies. Certain dietary supplements including phytosterols, berberine, viscous soluble dietary fibres, garlic supplements, soy protein, specific probiotic strains, and certain polyphenol extracts could significantly reduce plasma total and low-density lipoprotein (LDL) cholesterol levels by 3-25% in hypercholesterolemic patients depending on the type of supplement. They tended to be more effective in reducing plasma LDL cholesterol level in hypercholesterolemic individuals than in normocholesterolemic individuals. These supplements worked by various mechanisms, such as enhancing the excretion of bile acids, inhibiting the absorption of cholesterol in the intestines, increasing the expression of hepatic LDL receptors, suppressing the activity of enzymes involved in cholesterol synthesis, and activating the adenosine monophosphate-activated protein kinase signalling pathway.

The Impact of Red Yeast Rice Extract Use on the Occurrence of Muscle Symptoms and Liver Dysfunction: An Update from the Adverse Event Reporting Systems and Available Meta-Analyses

Red yeast rice (RYR) has a cholesterol-lowering effect due to the presence of bioactive components (monacolins, mainly monacolin K) that act by inhibiting the activity of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase. The European Food Safety Authority (EFSA) assessed the use of RYR and, while pointing out several uncertainties regarding the available data, raised a warning related to the safety of RYR when used as a food supplement at a dose of monacolin as low as 3 mg/day. In their decision in June 2023, EFSA approved the use of monacolins from RYR at doses less than 3 mg/day. We therefore decided to interrogate the different adverse event reporting systems (FAERS and CAERS) and analyse the characteristics of the cases reported to be associated with RYR supplements, and we reviewed the most recent meta-analyses with a focus on the occurrence of muscle symptoms and liver dysfunction. In terms of all musculoskeletal disorders from September 2013 (when the first case related to RYR consumption was recorded) to 30 September 2023, 363,879 cases were reported in the FAERS, with the number of cases related to RYR consumption being very small and accounting for 0.008% of cases. In the same time frame, 27,032 cases of hepatobiliary disorders were reported, and the cases attributable to RYR ingestion accounted for 0.01% of all cases. A low rate of muscle symptoms and liver dysfunction attributed to RYR ingestion was also observed in the CAERS database, where only 34 cases of adverse muscle events and 10 cases of adverse liver events reported RYR as the suspect product, while 19 cases of both muscle events and 10 cases of adverse liver events reported it as a concomitant product. This profile mirrors that of meta-analyses of randomised clinical trials of RYR, in which RYR use was not associated with either liver dysfunction or muscular adverse symptoms.