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Page 7 of 76

Caffeine Before Fasted Cardio: Does It Break the Fast and Does It Burn More Fat?
Science

Caffeine Before Fasted Cardio: Does It Break the Fast and Does It Burn More Fat?

The viral 44 percent more fat claim is not well supported. Here is what real fat-oxidation studies show about caffeine before a fasted workout.

R
Roon Team
September 3, 2026·8 min read
#caffeine
Caffeine Pouches Without a Subscription: Which Brands Sell One-Time Tins (and What Each Costs Per Pouch)
Guides

Caffeine Pouches Without a Subscription: Which Brands Sell One-Time Tins (and What Each Costs Per Pouch)

Which caffeine pouch brands sell a genuine one-time tin, what each costs per pouch, and what you give up by skipping the subscription.

R
Roon Team
September 2, 2026·9 min read
Best Energy Drink to Stay Awake: Ranked by Caffeine per Ounce, Crash Risk, and Duration
Focus

Best Energy Drink to Stay Awake: Ranked by Caffeine per Ounce, Crash Risk, and Duration

Ranked by verified mg per can and per ounce: Bang, Reign, Celsius, Monster, Red Bull, and more, plus crash risk and how long each one lasts.

R
Roon Team
September 2, 2026·12 min read
#caffeine
Can You Drink Coffee on the Carnivore Diet? What Strict Carnivores Do About Caffeine
Wellness

Can You Drink Coffee on the Carnivore Diet? What Strict Carnivores Do About Caffeine

Coffee is not strictly carnivore by the diet's own logic, yet most carnivore dieters drink it anyway. See where Baker, Saladino, and the Lion Diet stand.

R
Roon Team
September 2, 2026·8 min read
#coffee#caffeine
Why Does Pre-Workout Make You Itch? The Science Behind the Tingles
Energy

Why Does Pre-Workout Make You Itch? The Science Behind the Tingles

The pre-workout itch is called paresthesia, caused by beta-alanine activating skin nerve fibers. It's harmless and usually fades within an hour.

R
Roon Team
September 2, 2026·9 min read
Does Kombucha Have Caffeine? Per-Bottle Amounts by Brand
Energy

Does Kombucha Have Caffeine? Per-Bottle Amounts by Brand

Most kombucha has 5 to 15 mg of caffeine per bottle, about the same as decaf coffee. Brand table for GT's and Health-Ade, plus the alcohol question.

R
Roon Team
September 2, 2026·8 min read
Does Diet Soda Break a Fast? Aspartame, Caffeine, and the Cephalic Insulin Question
Wellness

Does Diet Soda Break a Fast? Aspartame, Caffeine, and the Cephalic Insulin Question

Does diet soda break a fast? Diet Coke and Coke Zero use different sweeteners. See the cephalic insulin research and the real verdict by fasting goal.

R
Roon Team
September 2, 2026·8 min read
Is Sucralose Keto Friendly? Net Carbs, the Splenda Packet Trap, and What the Insulin Studies Actually Show
Science

Is Sucralose Keto Friendly? Net Carbs, the Splenda Packet Trap, and What the Insulin Studies Actually Show

Pure sucralose has no meaningful carbs, but Splenda packets carry hidden fillers, and insulin trials raise a separate question. Here is the full picture.

R
Roon Team
September 2, 2026·9 min read
Afternoon Coffee: The Latest You Can Drink It Without Wrecking Tonight's Sleep
Focus

Afternoon Coffee: The Latest You Can Drink It Without Wrecking Tonight's Sleep

Caffeine's half-life ranges 1.5 to 9.5 hours. See the actual sleep-study data and a worked example for your safest afternoon coffee cutoff.

R
Roon Team
September 2, 2026·10 min read
#coffee
Zoot Pouches Review (2026): Doses, Price Per Pouch, and Who They Fit
Alternatives

Zoot Pouches Review (2026): Doses, Price Per Pouch, and Who They Fit

Zoot pouches reviewed: 50 mg caffeine, alpha GPC, L-tyrosine, L-theanine, 20 per can, about $0.45 a pouch. What the doses mean and how Zoot compares.

R
Roon Team
September 2, 2026·9 min read
+2
Flavor Fatigue: Why Your Daily Coffee, Energy Drink, or Pouch Stops Tasting Like Anything
Science

Flavor Fatigue: Why Your Daily Coffee, Energy Drink, or Pouch Stops Tasting Like Anything

Flavor fatigue explained: why your daily coffee, energy drink, or pouch stops tasting like anything, the real mechanism, and what actually helps.

R
Roon Team
September 2, 2026·8 min read
Coffee Before Work, Training and Bed: What Actually Changes
Guides

Coffee Before Work, Training and Bed: What Actually Changes

Can you drink coffee before a blood test, colonoscopy, MRI, workout, or tattoo? Straight answers for 12 situations, 7 clinical and 5 routine.

R
Roon Team
September 1, 2026·12 min read
Does Caffeine Help Memory? The Research Says Mostly No
Science

Does Caffeine Help Memory? The Research Says Mostly No

Does caffeine help memory? A 2014 study found 200 mg post-learning helped, but 100 mg did not, and a 2020 follow-up failed to replicate the result.

R
Roon Team
September 1, 2026·8 min read
Do Caffeine Patches Work? Absorption, Onset, Duration, and 5 Brands Tested
Alternatives

Do Caffeine Patches Work? Absorption, Onset, Duration, and 5 Brands Tested

Do caffeine patches work? Real per-patch mg from 5 brands, what transdermal caffeine research actually shows, and why the evidence is still thin.

R
Roon Team
September 1, 2026·10 min read
#caffeine
Zyn Near Me: Where to Buy Zyn, Which Stores Carry It, and Why It Keeps Running Out
Guides

Zyn Near Me: Where to Buy Zyn, Which Stores Carry It, and Why It Keeps Running Out

Zyn near me: why it keeps selling out, where it actually sells online now, which stores carry it, current prices, and the new Colorado plant.

R
Roon Team
September 1, 2026·9 min read
#zyn
Memory Supplements: The Evidence Table (Today, Six Weeks, Never)
Nootropics

Memory Supplements: The Evidence Table (Today, Six Weeks, Never)

No memory supplement reliably improves recall in healthy adults on the day you take it. This evidence table rates every major ingredient.

R
Roon Team
September 1, 2026·10 min read
Why Am I So Tired on Semaglutide? (Compounded, Ozempic, Wegovy)
Wellness

Why Am I So Tired on Semaglutide? (Compounded, Ozempic, Wegovy)

Ozempic and Wegovy report fatigue very differently on their own labels. See why, plus the added risk if you're on compounded semaglutide.

R
Roon Team
September 1, 2026·8 min read
Gorgie Energy Drink Review: 150 mg Green-Tea Caffeine, L-Theanine, and Stevia in One Can
Energy

Gorgie Energy Drink Review: 150 mg Green-Tea Caffeine, L-Theanine, and Stevia in One Can

150 mg green tea caffeine, 75 mg L-theanine, fully disclosed doses, and stevia: an honest review of what's actually in a can of Gorgie.

R
Roon Team
September 1, 2026·9 min read
#l-theanine
Does a Calorie Deficit Make You Tired? Why It Happens and What Actually Helps
Science

Does a Calorie Deficit Make You Tired? Why It Happens and What Actually Helps

A calorie deficit lowers thyroid output and leptin while raising cortisol, causing real fatigue and brain fog. Here is what actually helps.

R
Roon Team
September 1, 2026·9 min read
Does Magic Mind Work? The Dose Behind the Two-Ounce Shot
Nootropics

Does Magic Mind Work? The Dose Behind the Two-Ounce Shot

Each shot contains 55 mg of caffeine, below the 75 mg threshold with strong evidence. See the ingredient-level answer to does magic mind work.

R
Roon Team
September 1, 2026·9 min read
How Much Caffeine Is in Alani Nu? Full Can, Mini, and Energy Sticks Compared
Energy

How Much Caffeine Is in Alani Nu? Full Can, Mini, and Energy Sticks Compared

Alani Nu Energy has 200 mg of caffeine per can. Full table for the Mini and Energy Sticks, plus how it compares now that Celsius owns the brand.

R
Roon Team
September 1, 2026·9 min read
Does Caffeine Make Period Cramps Worse? What 14 Years of Nurses' Health Study Data Say
Wellness

Does Caffeine Make Period Cramps Worse? What 14 Years of Nurses' Health Study Data Say

Coffee and soda are not the same story. Here is what 14 years of Nurses Health Study data and separate dysmenorrhea studies actually found.

R
Roon Team
September 1, 2026·9 min read
#caffeine
Does Focus Factor Work? Inside the One Trial It Cites
Nootropics

Does Focus Factor Work? Inside the One Trial It Cites

Does Focus Factor work? Its only cited trial enrolled 96 people for six weeks and found a two-word improvement in recall.

R
Roon Team
September 1, 2026·10 min read
Best Paraxanthine Supplements in 2026: Pouches, Capsules, and Pre-Workouts Compared
Nootropics

Best Paraxanthine Supplements in 2026: Pouches, Capsules, and Pre-Workouts Compared

Real paraxanthine pouches, capsules, pre-workouts, and drinks compared by mg per serving and price, plus what the human trials actually show.

R
Roon Team
September 1, 2026·9 min read