Health & Caffeine Disclaimer

The information on this page applies to Mana Rush Guarana products. Mana Rush contains caffeine from guarana. Always read the product label and choose a serving that fits your caffeine tolerance and total daily intake.

Mana Rush serving and caffeine guide

Quarter scoop: about 63 mg caffeine
Half scoop: about 125 mg caffeine
Full 5 g scoop: about 250 mg caffeine

Caffeine values are approximate. A full Mana Rush serving is a substantial caffeine dose, so account for coffee, tea, soda, energy drinks, pre-workout, medications, and other caffeine used the same day.

Shot-style or longer drink: the caffeine is the same

Mana Rush can be mixed with different amounts of water according to taste:

Bold shot-style drink: mix your chosen amount of powder with about 2–4 oz of cold water for a smaller, more concentrated flavor.
Lighter drink: mix the same chosen amount of powder with more water, up to about 8 oz.

Water changes flavor concentration, not caffeine. A full 5 g serving contains about 250 mg whether it is mixed into 2 oz, 4 oz, or 8 oz of water. Caffeine changes only when the amount of powder changes.

General caffeine guidance

For most healthy adults, the U.S. Food and Drug Administration cites 400 mg of caffeine per day as an amount not generally associated with negative effects, while emphasizing that sensitivity and elimination vary considerably from person to person.

Children and teens: Mana Rush is not intended for use by children or teenagers.
Pregnancy or nursing: Mana Rush is not intended for use during pregnancy or nursing. Ask a healthcare professional about caffeine intake that is appropriate for you.
Medical conditions or medications: Ask a healthcare professional before use if you have a cardiovascular condition, high blood pressure, anxiety, sleep problems, caffeine sensitivity, or take medication that may interact with caffeine.
Alcohol: Do not combine Mana Rush with alcohol.
Other caffeine: Do not casually stack a full serving with coffee, pre-workout, energy drinks, or other high-caffeine products.
Sleep: Caffeine can remain active for hours. Use it early enough that it does not interfere with your sleep.

Possible effects of too much caffeine

Too much caffeine can cause effects such as restlessness, anxiety, rapid heartbeat or palpitations, increased blood pressure, headache, stomach discomfort, and sleep disruption. Stop taking additional caffeine if unwanted effects occur. Seek medical care for severe or concerning symptoms.

Natural and added caffeine

Caffeine is caffeine regardless of source. The FDA states that there is no difference in how the body handles or in the safety of naturally occurring caffeine compared with caffeine added to a product. Mana Rush uses guarana as its caffeine source, but the source does not make a high caffeine dose harmless.

General information, not medical advice

Website content is provided for general product and educational information and is not medical advice or a substitute for care from a qualified healthcare professional. Mana Rush is not intended to diagnose, treat, cure, or prevent disease.

References: U.S. FDA: Spilling the Beans — How Much Caffeine Is Too Much? · ACOG: Moderate Caffeine Consumption During Pregnancy

How to use Mana Rush →

Last updated: August 7, 2026 (HST)