Milk Thistle 1000 by Gaia Herbs Pro

Milk thistle is the herb people reach for first when they want to support their liver. This extract fits adults who want an organic milk thistle with a stated silymarin content, often alongside a plan to cut back on alcohol, lose weight or clean up their diet. If ALT, AST or GGT run high on your labs, the first step is finding out why with your clinician. A supplement is an add-on to that workup, not a substitute for it.

The active part of milk thistle is silymarin, a group of plant compounds concentrated in the fruit (often called the seed). Silymarin acts as an antioxidant in liver cells and, in laboratory studies, helps maintain glutathione. Trials in people are mixed: some show modest improvements in liver enzymes and others show none. The front label describes this extract, which the maker calls Silactive, as having improved bioavailability compared with standard milk thistle extract.

One serving is 4 capsules, which provides 1,000 mg of organic milk thistle fruit extract containing 500 mg of silymarins. The label equates that serving to 30,000 mg of dry herb. Follow the directions on your bottle or your clinician's advice. Taking the capsules with meals, together or split through the day, limits the mild stomach upset or loose stools milk thistle can cause.

Milk thistle belongs to the daisy family, so people allergic to ragweed, chrysanthemums, marigolds or daisies are more likely to react to it. It can lower blood sugar slightly, which matters if you take insulin or other diabetes medicines: watch your glucose readings when you start and tell your prescriber. If you are pregnant or nursing, have a diagnosed liver condition or take prescription medicines, check with your clinician before using it.

If milk thistle is going to move your liver enzymes, that usually shows within 2–3 months, so recheck ALT, AST and GGT after about 12 weeks and reconsider if nothing has changed. Compared with a plain milk thistle seed powder, a standardized extract tells you how much silymarin you are getting, which is the figure worth comparing between products. Less alcohol, weight loss and regular exercise have stronger evidence for liver health than any supplement.