★★★★★600+ five-star reviews · Ships to 12 countries
3oz bag21 servings42 brews totalShips 12 countries
It's 92 of 102 minerals. That's why your body stops asking for food — it finally has what it was actually looking for.
— Jason Riley, in the video
Keep reading
Why this works
Four reasons the body stops begging for food.
Hunger on a traditional fast is rarely hunger — it's mineral deficit. We fix the deficit. The rest takes care of itself.
i.
All 102 minerals, bioavailable.
Nine wildcrafted herbs — each selected to fill a specific elemental gap — deliver the full spectrum of minerals the body actually uses. Not isolated. Not synthetic.
ii.
Autophagy engaged at hour 16.
48 hours without food triggers cellular cleanup — the body eats its broken, aged cells for fuel. By hour 48 you're in deep repair mode. Stem-cell signaling follows.
iii.
Hydration on purpose.
Spring water every hour carries the minerals in. No electrolyte packets, no sugar, no caffeine — just clean water and the brew. The body knows what to do.
iv.
42 brews per 3oz bag.
Each 21-serving bag is reusable twice — 42 actual cups of tea. A 48-hour fast uses six. One bag covers seven full fasts, or a month of daily ritual.
The mineral math
Your multivitamin is missing about seventy.
We compared the most common ways people try to cover their mineral base. The brew isn't close — it's in a different category.
Sourced wildcrafted or organically grown. Nothing here is decorative — each herb fills a specific mineral or systems role.
Soursop
Antioxidant · Immune
Dense in acetogenins and vitamin C. Calms the nervous system while the body does the heavy lifting of autophagy.
Sarsaparilla
Hormone · Blood
Classic blood purifier. Carries zinc, iron and magnesium; supports testosterone regulation and joint tissue.
Dandelion Root
Liver · Detox
Bitter principals stimulate bile. Potassium, calcium and iron delivered with liver support — the cleanup crew.
Blessed Thistle
Digestive · Appetite
Traditional bitter used to settle the stomach during long fasts. Dampens hunger signals without suppressing them chemically.
Blue Vervain
Nervous System · Calm
A nervine that takes the edge off. Magnesium-rich; classically used by herbalists to quiet the tension of a long fast.
Irish Sea Moss
The 92 Elemental
The single richest source of trace minerals on earth. This is the herb that does the heaviest lifting toward 102.
Burdock Root
Skin · Lymph
Supports lymphatic drainage and skin clarity. Inulin feeds the microbiome so the gut is ready when you break fast.
Elderberry
Immune · Polyphenols
Anthocyanin powerhouse. Backs the immune surge that happens when autophagy clears the decks.
Bladderwrack
Thyroid · Iodine
Natural iodine source that partners with sea moss. Supports thyroid function through the metabolic shift of fasting.
The 48-hour protocol
Three cups a day. Water between. That's it.
Simple on purpose. Your only job for 48 hours is to keep the brew flowing and the water clean. We handle the rest.
Hour 0 · Breakfast
Cup one — set the tone.
Brew one serving hot. Sip slow. This first cup carries the heaviest mineral load because your system is clean from overnight. Follow with 8oz spring water within the hour.
Hour 6 · Lunch
Cup two — steady state.
Second brew, often using the same leaves as cup one (each serving is reusable twice). Hunger signals are fading. Spring water, minimum 8oz per hour, continues.
Hour 12 · Dinner
Cup three — deep repair.
Third brew closes the first day. Autophagy is ramping. Sleep will be deeper than you expect. Keep water going between cups — aim for 100oz across the day.
Hour 16-48 · The Zone
Repeat. Trust the brew.
Day two mirrors day one. Three cups, water between. No food. Most people report a clarity hit somewhere around hour 30 — that's the shift.
Hour 48 · Break fast
Start here. Every blood type.
Dark berries (blueberries, blackberries, elderberries) with coconut water. This is universal. The body is primed for polyphenols and electrolytes — nothing else goes in first.
Then your blood type decides what's next.
After the berries and coconut water, match your reintroduction to your body's chemistry. This is how you hold the gains.
Universal first step: Dark berries + coconut water. All blood types. Wait 45 minutes before proceeding.
Type O · Type B
Animal-forward reintroduction.
Dark berries + coconut water
Bone broth (warm, sipped slowly)
Lean protein + cooked vegetables
Type A · Type AB · Other
Plant-forward reintroduction.
Dark berries + coconut water
Vegetable or mushroom broth
Plant-based whole food meal
72
Optional: the 72-hour extension.
The final 24 hours is where it goes from reset to transformation — peak autophagy, stem-cell activation, and the deepest immune reset the body is capable of. Same protocol. One extra day.
They came for the fast. They stayed for the clarity.
★★★★★
"Forty-eight hours. No hunger crash, no headache, nothing. I've done dozens of fasts — this is the first time I didn't white-knuckle it."
DT
Devon T.Austin, TX · Verified buyer
★★★★★
"My skin changed in a week. That's the only word for it — changed. Whatever mineral I was missing, this brew found it."
RM
Rachel M.Portland, OR · Verified buyer
★★★★★
"I'm on bag four. I've done the 48 three times. Sleep, energy, focus — all three moved. I don't write reviews. I'm writing this one."
JS
James S.Miami, FL · Verified buyer
Honest answers
The questions that actually matter.
Eight common questions about the 48-hour mineral fast. If yours isn't here, email Jason directly — that contact goes to a human.
Will I be hungry on a 48-hour mineral fast?
Most people are not. Hunger on a traditional water fast is largely a mineral and electrolyte deficit. Big Brain Brew delivers all 102 minerals the human body needs while you fast, so the body's hunger signals tend to quiet by the end of day one. Drinking spring water — at least 8oz per hour between brews — supports this further.
Can I take medication during the fast?
Continue any prescribed medication exactly as your doctor instructed. Do not stop medication for a fast. If your medication requires food, talk with your prescriber before starting any fast. Big Brain Brew is a tea, not a medical treatment, and is not a substitute for medical advice.
Is this safe if I'm pregnant or breastfeeding?
No. Extended fasting is not appropriate during pregnancy or breastfeeding. We do not recommend the 48-hour protocol for anyone in either state. Speak with your healthcare provider about safer nutritional approaches.
What if I get a headache or feel weak?
Mild headache or fatigue in the first 12-18 hours typically signals dehydration or low minerals. Drink another 8-16oz of spring water, brew an additional cup if it has been more than 4 hours since your last one, and rest. If symptoms persist, are severe, or include dizziness, break the fast with dark berries and coconut water and consult a healthcare provider.
How is this different from a regular water fast?
A standard water fast restricts everything except water — including minerals, which the body still needs. That depletion is what produces the worst symptoms (fog, irritability, weakness). Big Brain Brew's 48-hour mineral fast keeps you in a fasted state — no calories from food — while supplying minerals through nine wildcrafted herbs. The fasting benefits remain; the depletion symptoms drop sharply.
Can I do this if I have diabetes or low blood sugar?
Anyone with diabetes, hypoglycemia, or any blood-sugar regulation condition should consult their doctor before starting a fast of any kind. The brew itself contains no sugar and minimal carbohydrates, but extended food restriction can be unsafe without medical supervision in these conditions.
How often can I run a 48-hour mineral fast?
Most people do well with one 48-hour fast per week, or one per month if they are new to fasting. The 30-Day Reset Bundle is sized for three full 48-hour fasts plus a daily cup; the 90-Day Cleanse Bundle covers a longer cadence. Listen to your body and adjust as needed.
Why these nine herbs specifically?
Each herb in Big Brain Brew is selected to fill a specific mineral or system role: Soursop and Elderberry for antioxidants and immune support, Sarsaparilla and Burdock Root for blood and lymph, Dandelion Root for liver function, Blessed Thistle for digestion, Blue Vervain for the nervous system, and Irish Sea Moss + Bladderwrack as the dominant mineral and iodine sources. Together they cover the full elemental profile the body needs.
30
Days
Run the fast. If we don't deliver, we do.
We know what the brew does. If after a full fast you're not feeling what we promise, email us within 30 days and we'll make it right — refund, replacement, or a direct call with Jason to troubleshoot your protocol. No gotchas.
Last thing
Your next 48 hours are already here.
The protocol is decided. The herbs are sourced. The only variable left is whether the brew is in your kitchen when you wake up tomorrow.
