How Much Valerian Should You Take? A Sensible Range

With valerian, more isn't more. Here is the working range practitioners and studies tend to agree on, and the signs you have gone past it.

The working range

As tea, 1 to 2 teaspoons of root steeped 10 minutes; smells strong, works quietly.

Stay at food level: a few cups of tea, a spoon of powder, the amounts a cook would use. Concentrated extracts compress several servings into one capsule, so follow the label rather than free-pouring.

What the studies used

A few cautions from the research literature: side effects of valerian include headache, stomach upset, mental dullness, excitability, uneasiness, and vivid dreams. Some may experience withdrawal symptoms, including anxiety, irritability, heart disturbances, insomnia, and in rare cases, hallucinations, if stopped abruptly after chronic use.

Signs you have overdone it

Valerian is slightly cool in nature. Push a warming herb hard and you feel flushed, restless, dry-mouthed; push a cooling herb and digestion turns sluggish. Either way, the fix is the same: stop, let things settle, restart at half the amount.

Worth knowing: Take charge of your health—talk with your health care providers about any complementary health approaches you use. Together, you can make shared, well-informed decisions.

Start low, watch how your body responds, and give it a fair run of a few weeks before judging. If something feels wrong, stop; that feedback matters more than any article.