I got some very specific results using the ashwagandha extract KSM 66. Googling KSM 66, one will find many sites and lists of potential benefits.
Lowering cholesterol and raising the blood platelet count were potential benefits I'd noticed. I've never really had high cholesterol problems, but for three years had platelet counts just above and below 150, the bottom number in the normal range. My most recent total cholesterol test result before starting the KSM 66 was 173.
On annual blood tests after a couple of months of KSM 66, total cholesterol was 148 (lowest ever)and my platelet count has risen to 250, the first time it had been a good normal for more than three years. Cholesterol ratios were about the same.
I just decided to experiment with KSM 66 and was not taking it for those two specific results. I think ashwagandha also has a calming effect and perhaps resulted in better sleep.
Here is one of many sites that can be found.
Ashwagandha has so many benefits that many herbs books have pages on it. The benefits I posted above were primarily about the nervous system. It is sometimes called Indian ginseng as it is very strengthening to the system, but without some of the irritation or heating that ginseng can cause.
Since I’m basically in the Ayurvedic tradition although I do use some other herbs, I prefer the whole powdered herb rather than extracts, for a few reasons. If the extracts help people, fine; I just prefer the whole thing, as there are micronutrients and other chemical constituents that support or help the herb’s uses. But whatever works.