liver
15 interactions related to liver
alcohol + red yeast rice
Red yeast rice contains monacolin K, chemically the same as a statin, which carries a small, uncommon risk of liver injury. Alcohol is also hard on the liver, so combining the two — especially heavy or regular drinking — can add to the strain on the same organ.
sertraline + kava
Kava (Piper methysticum) is a central nervous system depressant with a documented risk of serious liver injury, and combining it with sertraline raises the chance of additive sedation and additive liver stress. Kava also inhibits drug-metabolizing enzymes, and a case report describes prolonged serotonin syndrome in a patient taking kava alongside a serotonergic antidepressant.
alcohol + warfarin
Alcohol affects warfarin in two opposing directions: acute heavy drinking slows the liver's metabolism of warfarin, which can raise INR and bleeding risk, while sustained heavy drinking induces those same enzymes and can lower INR, increasing clot risk. Alcohol also impairs platelets and can damage the liver where clotting factors are made, and intoxication raises fall risk, all of which compound the bleeding hazard.
acetaminophen + n-acetylcysteine
N-acetylcysteine (NAC) is a cysteine donor the body uses to make glutathione, the same compound the liver relies on to neutralize acetaminophen's toxic metabolite NAPQI. NAC is the standard medical antidote for acetaminophen overdose, and routine co-use at supplement levels is considered protective rather than harmful. The safety boundary is the amount of acetaminophen taken, not the presence of NAC.
choline + vitamin b12
Choline (via its metabolite betaine) and vitamin B12 feed the two parallel pathways that recycle homocysteine back into methionine: the choline-betaine-BHMT route and the folate-B12-methionine-synthase route. Adequate choline can help maintain methylation through the BHMT pathway when B12 or folate status is marginal, supporting healthy homocysteine and SAMe levels. This is a benign nutritional synergy, not a risky combination.
glutathione + vitamin c
Glutathione and vitamin C participate in the same cellular antioxidant network and help regenerate one another. When vitamin C is oxidised to dehydroascorbate, glutathione donates electrons to convert it back to active ascorbate; in turn, vitamin C helps keep glutathione in its active reduced form. The two are commonly supplemented together and the combination is well tolerated, though clinical benefit beyond the established biochemistry is modest and not consistently proven.
nac + vitamin c
NAC and vitamin C touch the same antioxidant network on paper, but the human evidence for taking them together is mixed: a controlled trial found the combination raised oxidative stress and tissue-damage markers after acute muscle injury rather than protecting against them.
milk thistle + alpha-lipoic acid
Silymarin from milk thistle helps stabilize liver-cell membranes and damp inflammation, while alpha-lipoic acid helps regenerate the cell's own antioxidants such as glutathione. The two work through different, complementary mechanisms, so combining them is a plausible liver-support pairing. To date the specific combination has mainly been tested in animal models, so the synergy is mechanistically reasonable rather than proven in people.
nac + selenium
NAC supplies cysteine, the rate-limiting building block for glutathione synthesis, while selenium is the cofactor built into the glutathione peroxidase enzymes that use glutathione to neutralize peroxides. The two nutrients support the same antioxidant pathway, so on a mechanistic level each helps the other work. Combined clinical benefit beyond that shared pathway is not well demonstrated, and the pairing is low-risk.
alcohol + statins
Statins and alcohol are both processed by the liver, and heavy or chronic combined use can add to the strain on liver cells, modestly raising the risk of liver enzyme elevation and, less commonly, muscle problems. In people with established alcohol-related liver disease, statin levels in the blood can run higher than normal. For most people who drink lightly to moderately, a statin is still safe with routine monitoring.
rooibos tea + liver enzymes
Rooibos (Aspalathus linearis) is generally well tolerated. A small number of case reports describe transient elevations in liver enzymes (AST, ALT) with heavy or prolonged consumption, though the clearest acute-injury report involved rooibos taken together with another herb rather than rooibos alone. Laboratory (in vitro) work suggests rooibos can modulate hepatic CYP450 enzymes, which raises a theoretical, unproven possibility of affecting the metabolism of some co-administered drugs.
nac + glutathione
NAC (N-acetylcysteine) supplies cysteine, the rate-limiting building block the body uses to make its own glutathione, while supplemental glutathione adds to the existing pool. Both support antioxidant defense, and the pairing is generally well tolerated. Human trial evidence for raising glutathione comes mainly from NAC (often with glycine, as GlyNAC), not from combining NAC with oral or liposomal glutathione, and no study has shown the pair works better than either one alone.
choline + inositol
Choline and inositol are classic lipotropic nutrients that each support how the liver handles fat. Choline is needed to package triglycerides into VLDL particles for export from the liver, while inositol contributes to phosphatidylinositol membranes and insulin signaling. Each has independent evidence for supporting liver lipid metabolism, but the specific benefit of combining them has not been demonstrated in humans, so the pairing is best viewed as low-risk and complementary rather than proven synergy.
alcohol + nac
N-acetylcysteine (NAC) is a precursor to glutathione, the antioxidant the liver uses to neutralize acetaldehyde, the toxic intermediate of alcohol metabolism. The mechanism is plausible and animal studies show reduced alcohol-induced oxidative stress, but human trials are mixed-to-negative: the best controlled studies found no meaningful effect on hangover symptoms or oxidative markers. NAC does not protect against the cumulative harms of drinking.
acetaminophen + milk thistle
Milk thistle's active component silymarin reduces CYP2E1 activity and supports hepatic glutathione, the same pathways that govern acetaminophen safety, so it may add a mild margin of liver support. The protective effect is shown mainly in animal studies; human clinical benefit is plausible but not established. The combination is considered low-risk, but milk thistle is not a substitute for safe acetaminophen dosing and is never a treatment for overdose.