Overclock your body with geek cuisine

Can caffeinated chips and drinks stuffed with more herbs than you'd find in an Asian pharmacy really make you more productive? We slurped and chewed our way through lots of so-called energy food to find out.

Maybe you didn't sleep so well last night, with an unruly spring poking you in the back and your clock ticking thunderously. Perhaps the massive burrito you ate for lunch is now singing the refrain to "Cielito Lindo" over and over as you lapse into an afternoon food coma. Or your boss "suggests" that you stay late to finish the maddeningly boring last bits of the big project. You need a boost to jolt yourself out of your lethargy and amplify your productivity.


Well, you can overclock a PC for better performance, so why not overclock yourself? Is there a simple way to speed up your metabolic rpm, accelerate your mental gigahertz, or increase your intellectual bandwidth? And can you achieve the performance upgrade without shorting out your power supply or overheating and fusing your CPU, thereby transforming yourself into a featherless bipedal doorstop.

In the interest of semiscientific inquiry--and because I'll eat just about anything to put food on the table (wait a minute...)--I took a look at a host of performance enhancers from the mainstream to the exotic to the just plain wacky. My mission: to see which ones provided a boost without inducing psychosis. For each product, I ingested a standard serving in the morning, in lieu of coffee. Enduring the resulting jitters, shakes, nausea, hallucinations, palpitations, and heebie-jeebies, I sweated out the bad stuff to bring you the good stuff.

Though the efficacy of all of these supplements remains largely a matter of conjecture, energy drinks are at the center of a growing controversy over the unknown effects that large quantities of herbal energy boosters can have on the human body. I can't stop you from trying any of these products, but I urge you to exercise caution if you're inclined to experiment--and not to experiment at all if you are under 18, are pregnant (or trying), or have any health problems. With that caveat out of the way, here's the straight dope on so-called smart foods. And remember: I'm not a real doctor.

Drinking It All In

The most accessible over-the-counter power-up--and perhaps the most controversial--is the energy drink. If you're looking for a quick jump-start, just crack open one of these stimulant-rich solutions. Packed with potent pep in the form of sugar, caffeine, and guarana, plus vitamin C and B vitamins, energy drinks can deliver an undeniable boost. But are they safe? Few topics in the nutrition world are more hotly contested.

Cynthia Sass, a registered dietitian who holds a masters degree in public health, says that it all depends. "Caffeine is generally considered safe, but when multiple stimulants are combined, even healthy, young, fit people can experience side effects including spikes in blood pressure and heart rate," says Sass. And energy drinks do pile on the stims. Guarana includes its own hidden dose of caffeine but is listed separately from regular caffeine; ginseng is another natural stimulant. In addition, the gargantuan cans that energy drinks are sold in usually contain two full servings (and sometimes more), so it's easy to exceed a dosage that's comfortable or safe for you.

Of course, the drinks themselves vary widely in flavor and efficacy. As you wander the minimart before your second shift, you encounter a visual cacophony of mysterious concoctions that evidently target very precise subgroups of the sleepyhead demographic, ranging from NASCAR moms to death-metal tweens. Which one should you consume to replenish your essences? I grabbed several of the most popular drinks (sans the ubiquitous Red Bull; I figure that if you're interested in it, you've already tried it) to test the effects--good or bad--on my own physiology.

(Confused about the vaguely medicinal-sounding herbal additives--such as taurine, guarana, and L-carnitine--that crop up in the lists of ingredients? Jump to the "Field Guide to Energy Additives" for a primer on these ingredients.)

Nos High Performance Energy Drink Taste: 8 Energy: 2


With its low carbonation (typical of energizer drinks), Nos resembles a peach Orangina, making it pretty pleasurable to drink. When cold, it verges on refreshment. It comes fortified with caffeine, ginseng, taurine, and both vitamin C and the B group of vitamins. But in my test, its energy boost seemed rough and short-lived. It certainly increased my energy and awareness, but those effects were attended by a shakiness that was better suited for staccato tapping on a tabletop than typing an e-mail. In short, it was a jaggy rush followed, inevitably, by a case of the yawns.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Roger Hibbert

PC World (US online)
Show Comments

Cool Tech

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Breitling Superocean Heritage Chronographe 44

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?