A complete safety, timing, and dosage guide for combining Apple Cider Vinegar (capsules/gummies) with MSM (Methylsulfonylmethane) — including how the two supplements interact, the best time of day to take each, and which populations should be careful.
Yes, you can safely take apple cider vinegar and MSM together; no significant interaction has been reported.
Apple Cider Vinegar and MSM together are safe for most adults. ACV's acetic acid may alter stomach acidity, but MSM's absorption does not depend on pH. No meaningful interaction exists, so you can combine them without special adjustments.
Apple cider vinegar is a dilute acetic acid solution that lowers gastric pH and can slow stomach emptying, which may affect the absorption of some minerals. MSM, a water-soluble sulfur compound, is absorbed primarily through passive diffusion in the small intestine and does not depend on stomach acid for solubility. Acetic acid from ACV may transiently reduce the pH of the upper GI tract, but MSM's absorption is not pH-sensitive, so no competitive or interfering pathway exists. Additionally, neither compound is metabolized by the same cytochrome P450 enzymes, and they do not share a common transporter. The only overlap to watch for is mild stomach upset if both are taken on an empty stomach, but this is not a drug-supplement interaction.
I recommend taking apple cider vinegar capsules with breakfast and MSM with lunch, or both together with your largest meal if that is simpler. The capsules should be swallowed with a large glass of water to minimize esophageal irritation. MSM powder can be dissolved in juice or water and taken at the same sitting, since no spacing is needed. If you miss a dose, just resume with your next meal; do not double up. Taking them with a meal that contains some healthy fat is fine—neither supplement's absorption depends on fat.
ACV capsules/gummies may contain added sugars or less acetic acid per serving than liquid vinegar, but the form does not create a new interaction with MSM. MSM is typically taken as a powder or capsule and is well absorbed regardless of co-ingestion with ACV. The main form-based consideration is to avoid taking gummies right before MSM if the gummy's sugar content bothers your stomach.
Yes, you can take them at the same time. I do not know of any interaction that requires separating them, and taking them together with a meal is convenient.
Yes, combining apple cider vinegar and MSM daily is safe for most healthy adults. I would start with the lowest effective doses and monitor your stomach. If you have diabetes or kidney issues, I would check with your doctor first.
No waiting time is necessary. I would tell you to take them together as long as you tolerate them well.
No, they do not compete for absorption. Apple cider vinegar's acetic acid may affect mineral absorption, but MSM is a sulfur-containing compound that is absorbed independently, so there is no interference.
I would advise people who take digoxin, diuretics, or insulin to avoid high doses of ACV without medical supervision, because it can lower potassium and blood sugar. MSM is generally safe, but anyone with kidney disease should talk to their doctor.
I suggest taking both with food to minimize stomach irritation. ACV on an empty stomach can cause heartburn, and MSM may also annoy a sensitive stomach.
Reviewed by Caroline M. on March 30, 2025 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.
The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.