Best Cordyceps Supplement: How to Choose One for Energy

Cordyceps is a functional mushroom best known for energy, stamina and exercise performance. Shopping for the best cordyceps supplement is confusing, though: labels mix species, grown forms, extracts and powders, and doses vary widely. This guide explains what cordyceps does for energy, what the human studies used, and exactly what to look for on a label.

It is educational, not medical advice.

Key Takeaways

• Cordyceps is not a stimulant. It is studied for stamina and exercise capacity rather than a quick jolt of energy.
• Benefits built with daily use. In one trial, 3 weeks of a cordyceps militaris blend improved VO2max and time to exhaustion during hard exercise.
• Two main types: cultivated Cordyceps militaris and lab-grown Cordyceps sinensis (often labeled Cs-4). Wild sinensis is rare and very expensive.
• Check the label for the species, fruiting body or mycelium, extract strength, and the amount per serving.
• Typical amounts are 0.5 to 4 grams a day, and cordyceps is generally well tolerated.

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Forage

Cordyceps, lion’s mane, reishi and four more mushrooms as 8:1 fruiting body extracts, plus Himalayan shilajit and ashwagandha root extract.

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Third-party tested ingredients. Vegan capsules.

What Is Cordyceps?

Cordyceps is a group of fungi used for centuries in traditional Chinese and Tibetan medicine, mostly for energy, stamina and recovery. Two species matter for supplements:

• Cordyceps sinensis (now called Ophiocordyceps sinensis) grows wild in the high Himalayas and is one of the most expensive natural products in the world. Most supplements labeled sinensis use a lab-grown strain called Cs-4 instead (LiverTox: Cordyceps).
• Cordyceps militaris is easier to cultivate, so its fruiting body, the mushroom itself, can be grown and extracted. It is naturally rich in cordycepin, one of the compounds researchers focus on.

More on the science is on our cordyceps militaris ingredient page and in cordyceps militaris benefits and uses.

Does Cordyceps Give You Energy?

Not the way coffee does. Cordyceps contains no caffeine and does not act as a stimulant. It is studied instead for how well the body uses oxygen and handles demanding exercise, which is where the “energy” reputation comes from.

• 3 weeks, high-intensity exercise. In 28 adults, 4 g a day of a mushroom blend containing cordyceps militaris improved VO2max by 4.8 ml/kg/min, time to exhaustion by about 70 seconds and ventilatory threshold after 3 weeks, compared with placebo (Hirsch et al., 2017).
• 12 weeks, amateur runners. A randomized, double-blind trial of cordyceps sinensis in amateur marathoners reported better 5 km run times and VO2max after 12 weeks (Savioli et al., 2022).
• Single dose, reaction time. In 12 active young men, 1 g of a standardized cordyceps militaris extract taken 30 minutes before testing led to faster reaction times after exercise (Farzan and Koushkie Jahromi, 2026).

The pattern: cordyceps is best thought of as daily support for stamina and exercise capacity that builds over weeks. For a deeper look at training, see cordyceps for athletes. If you wonder whether it will keep you up at night, see cordyceps and sleep; for women, see cordyceps for women. If you already take creatine for training, our guide to cordyceps and creatine explains how the two compare and whether to take both.

How to Choose the Best Cordyceps Supplement

Cordyceps militaris vs sinensis

Both are studied for stamina. Militaris is the more common choice for fruiting body extracts because it can be cultivated as a mushroom, and it contains more cordycepin. Cs-4 sinensis has been used in several older studies. The best cordyceps militaris supplement is simply one that names the species, uses the fruiting body or a clearly labeled extract, and lists the amount.

Extract vs powder

A cordyceps extract is concentrated: an 8:1 extract is made from about eight times its weight in mushroom. Plain dried powder costs less per gram but is less concentrated. For daily capsules, a labeled extract gives you more of the mushroom in a smaller serving.

How Much Cordyceps to Take and When

• Amount: commercial products range from 0.5 to 4 grams a day (LiverTox: Cordyceps); the exercise trials above used 1 to 4 grams. Follow your product label.
• Timing: in the morning or a few hours before training, with or without food. It does not affect sleep the way caffeine does, but most people prefer it earlier in the day.
• Consistency: give it at least 3 weeks of daily use, the point at which the clearest exercise results appeared.

What About Cordyceps Coffee?

Cordyceps coffee blends mix ground coffee with mushroom powder. The quick lift comes from the coffee’s caffeine, and the amount of cordyceps per cup is often small or not listed. If you want cordyceps for stamina, check the label for the milligrams of cordyceps per serving, or take it separately and keep your coffee as it is. If you want cordyceps in a warm drink without coffee, our Mushroom Cacao lists 500 mg of cordyceps 8:1 fruiting body extract per serving, with 500 mg of lion's mane, on a cocoa base.

If you are wondering about the fungus itself, our guide to whether cordyceps can infect humans explains the zombie ant fungus and why people are out of its reach. Our guide to cordyceps vs caffeine covers taking cordyceps with coffee.

Cordyceps Side Effects and Safety

• Generally well tolerated. Reported side effects are mild: stomach discomfort, loose stools, dry mouth, nausea or rash. LiverTox rates cordyceps an unlikely cause of liver injury (LiverTox: Cordyceps).
• Blood thinners: cordyceps may add to bleeding risk; check with your clinician first.
• Blood sugar medication: cordyceps may lower blood sugar, so it can add to glucose-lowering medicines.
• Immune-suppressing medication: talk with your clinician first.
• Pregnancy and breastfeeding: not enough is known; avoid unless your clinician agrees.

Where Forage Fits

Our Forage capsules include 200 mg of an 8:1 cordyceps fruiting body extract per two-capsule serving, alongside 8:1 fruiting body extracts of lion’s mane (200 mg), reishi (200 mg), chaga, maitake, turkey tail and shiitake (150 mg each), plus 100 mg of Himalayan shilajit, 100 mg of ashwagandha root extract and ginger extract. The label suggests two capsules daily in the morning, with or without food. It is a daily, caffeine-free mushroom blend for energy, resilience and focus, with every amount on the label.

Deciding between mushrooms? See lion’s mane vs cordyceps and best supplements for energy and focus. To see how cordyceps and reishi differ, read cordyceps vs reishi. If you are weighing cordyceps against a gut and immune mushroom, our guide to cordyceps vs turkey tail compares the two.

Sources

• National Institute of Diabetes and Digestive and Kidney Diseases. Cordyceps. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury, 2026. NCBI Bookshelf
• Hirsch KR et al. Cordyceps militaris Improves Tolerance to High-Intensity Exercise After Acute and Chronic Supplementation. Journal of Dietary Supplements, 2017. DOI
• Savioli FP et al. Effects of cordyceps sinensis supplementation during 12 weeks in amateur marathoners: a randomized, double-blind placebo-controlled trial. Journal of Herbal Medicine, 2022. DOI
• Farzan H et al. Acute Cordyceps militaris supplementation and elevated resting oxygen uptake with faster reaction times: A randomized crossover trial. PLoS One, 2026. DOI

Frequently Asked Questions

What is the best cordyceps supplement?

One that names the species (militaris or sinensis Cs-4), uses the fruiting body or a clearly labeled extract, lists the milligrams per serving, and uses third-party tested ingredients.

Does cordyceps give you energy?

Not like caffeine. It is not a stimulant; it is studied for stamina and exercise capacity. In one trial, 3 weeks of daily use improved VO2max and time to exhaustion.

Cordyceps militaris or sinensis: which is better?

Both are studied for stamina. Militaris can be grown as a mushroom and extracted from the fruiting body, and it contains more cordycepin. Most sinensis supplements use the lab-grown Cs-4 strain.

How much cordyceps should I take?

Products range from 0.5 to 4 grams a day, and the exercise studies used 1 to 4 grams. Follow your product label.

When should I take cordyceps?

In the morning or a few hours before exercise, daily. The clearest results in studies appeared after about 3 weeks.

Is cordyceps coffee worth it?

The quick lift mostly comes from the coffee. Check how much cordyceps each serving contains, since it is often small.

Is cordyceps safe?

It is generally well tolerated, with mild side effects such as stomach upset. Check with your clinician first if you take blood thinners, blood sugar or immune-suppressing medication, or are pregnant.

These statements have not been evaluated by the Food and Drug Administration. This content is for education and is not medical advice. Our products are not intended to diagnose, treat, cure or prevent any disease. Talk with a healthcare provider before starting a new supplement if you are pregnant, breastfeeding or taking medication.

Featured in this article

Forage

Cordyceps, lion’s mane, reishi and four more mushrooms as 8:1 fruiting body extracts, plus Himalayan shilajit and ashwagandha root extract.

Shop Forage

Third-party tested ingredients. Vegan capsules.