What the research actually says.
People quitting alcohol get marketed to constantly. This section reads the published research on the supplements that come up most, grades the strength of the evidence honestly, and cites every claim. Nothing here is for sale and nothing here is a recommendation.
Every page carries an evidence grade.
The grade describes the published human research for the specific use discussed on the page, not whether the supplement is good or bad. A strong grade is not an endorsement, and a preliminary grade is not a dismissal. It is just where the science currently stands.
Well-replicated human research for the use discussed on the page.
Human research exists but is mixed, small, or indirect.
A few small human studies. Suggestive, not conclusive.
Mostly early-stage or animal research so far.
All supplement pages
Ashwagandha
Alcohol was a blunt tool for shutting down stress. People who quit often go looking for something herbal to do that job, and ashwagandha is the supplement aisle's loudest answer.
Read the researchB vitamins (thiamine)
Thiamine deficiency is the best-documented nutritional consequence of heavy drinking, and clinicians routinely assess B1 status in people with heavy drinking histories. Folate and B12 come up in the same conversation.
Read the researchElectrolytes
Alcohol is a diuretic, and sustained heavy drinking can deplete magnesium and potassium, so electrolyte products are marketed hard to people who are quitting.
Read the researchGlycine
It comes up in early sobriety mainly for sleep, since a few small studies link it to falling asleep faster, and because of a separate, mostly preclinical line of research on glycine and alcohol in the body.
Read the researchL-theanine
Alcohol was a fast-acting way to feel calm. People who stop drinking often look for something that takes the edge off without sedation, and L-theanine is marketed as exactly that.
Read the researchMagnesium
Regular heavy drinking increases magnesium loss through the kidneys, and low magnesium is one of the most consistently documented nutrient deficits in people who drink daily.
Read the researchMelatonin
Sleep is usually rough in early sobriety, and melatonin is the supplement most people reach for first to replace the nightcap. Drinking also suppresses the body's own melatonin signal.
Read the researchN-acetylcysteine (NAC)
It comes up because researchers have studied whether its effect on the brain's glutamate system might influence substance-related behavior, and because it is sold over the counter without a prescription.
Read the researchOmega-3 fatty acids
Heavy drinking disrupts how the body handles fats, and animal studies show it lowers omega-3 levels in the brain, so the question of replenishing them comes up for people cutting back or quitting.
Read the researchProbiotics
Alcohol thins the gut lining and shifts the balance of gut bacteria, so people who stop drinking often wonder whether replacing those bacteria helps the gut, and maybe the mood, recover.
Read the researchTaurine
It is the headline ingredient in the energy drinks many sober-curious people drink instead of alcohol, and it touches the same calming GABA system drinking once leaned on.
Read the researchVitamin D
Deficiency is unusually common in people who drink heavily, partly because alcohol disrupts how the liver activates the nutrient, so a low level often surfaces on a blood test early in sobriety.
Read the research