Reviewer: Theresa Greenwell

Theresa Greenwell is the Scientific Affairs Manager at BulletProof 360. She received her degree in Dietetics from the University of North Carolina at Greensboro and has over 16 years of experience in supplement and nutritional product formulating, regulatory affairs, scientific research, and marketing. Having grown up as an overweight child, she strives to make products that will help others reach their weight and health goals in a way that is maintainable, not just temporary.

Theresa is passionate about animal welfare, history, health and hanging out with friends and family. She enjoys archery, target shooting, singing, dancing, hiking, roller skating and amusement parks.

Woman drinking Bulletproof Greens before a workout.

Mind-Body Motivation: 16 Ways to Reignite Your Routine

Feel like you’re stuck in neutral? Luckily, there are plenty of creative ways to change up your mind-body routine and get the needle moving in the right direction again. From switching up your eating window to bolstering your supplement stack, you can work toward achieving balance through some simple-yet-effective methods....

A kale shake with a straw on a wooden counter

The Kale Shake is Awesome—So Upgrade It

Kale and fruit breakfast shakes are all the rage now. But, there are ways to make this nutrient-dense drink even better for you. Kale has nutrients that make people feel healthier, manage their weight and get more done. It’s a big step up from sugar-filled cereal and muffins commonly known as...

Resistant Starch 101: A Complete Beginner’s Guide

Starch is a common carbohydrate in foods like potatoes, rice and bread, but not all starches are created equal. Regular starches are quickly broken down into glucose by the body, leading to a rapid rise in blood sugar levels.? Resistant starch behaves differently. Unlike regular starch, it resists digestion in...

Smoothie made with Bulletproof Greens and Bulletproof Unflavored Collagen Peptides

Greens Powder Smoothie

Say goodbye to basic green juice and hello to a new, tasty way to enjoy the benefits of leafy greens and superfoods. Packed with quality fats, antioxidants and collagen peptides, this Greens Powder Smoothie features our Bulletproof Greens. Creamy, delicious and easy to make, this three-step recipe requires minimal effort...

Bulletproof greens scoop on off-white background.

What Are Greens? 6 Things to Look for in a Greens Powder Supplement

If you’re having trouble building a custom supplement stack, maybe it’s time to consider a more comprehensive nutritional solution. Greens powders are growing in popularity among wellness enthusiasts, but how do you choose the one that’s right for you? At Bulletproof, we aim to arm you with the tools to...

Man working at home at table

What Are Brain Supplements? What to Know About Nootropics

The best brain supplements, also called nootropics, come in handy when you want to feel sharp, alert and focused. But how do they work? A single vitamin or mineral won’t help you remember where you parked the car. Instead, the best brain supplement solutions give you an extra edge thanks...

hand holding white supplements

The Bulletproof Guide to Supplements

Take a stroll down the supplements aisle and you’ll see everything from colorful multivitamins to superfood powders. You want to take care of your health. But with so many options, how are you supposed to find what you need? We’ll break down the facts about supplements, including different types and...

A woman jogging in the rain on a winding road

Natural Energy Supplements: How to Support Your Brain and Body

Taking care of your health means listening to your body. And when your energy levels crash, it can be tempting to reach for a big cup of coffee to get that caffeine kick. But now there are countless other alternatives to fueling your day: natural energy supplements. These include nootropics,...

Poop chart infographic, The ultimate guide to poop

This Poop Chart Identifies Different Types of Poop And What They Mean

Right now, you may be ignoring one of your body’s informational super-sources: your poop. Your poop can tell you all sorts of things about your digestive health, including if you should adjust your diet, drink more water or see a gastroenterology specialist. Next time you’re in the bathroom, take a...

Woman waking up feeling well-rested.

Gut Health & Sleep: 6 Ways to Support Your Microbiome for Better Rest

While the state of your gut microbiome massively impacts digestion, it also plays a significant role in the quality of your sleep. Luckily, there are a few easy ways to support optimal gut health, and by extension, better sleep. From foods to put on your plate to supplements to include...

Protein Fasting for Increased Lifespan detox human cell

Everything You Need to Know About Autophagy

Juice cleanses and detox teas don’t hold a candle to your body’s ability to detox. One of the ways it does this is through autophagy, a natural process that cleans out damaged cells and helps keep your systems humming. Autophagy may sound overly scientific, but it is extremely important. This...

Woman using a foam roller on her quadriceps.

Not Sure What to Do on Rest Days? Learn 10 Ways to Optimize Your Workout Recovery

While beginners may be eager to get back in the gym right away, personal trainers and experienced strength training enthusiasts understand the importance of rest days. After all, overtraining can lead to mental and physical burnout—neither of which will help you unleash your limitless potential. But what exactly should you...

Man eating colorful food while sitting at green bench

Beginner’s Guide to Intuitive Eating: How to Trust Your Body and Feel Better

Intuitive eating is a way to connect with your body—not control it. Instead of counting calories or tracking every bite, you focus on how food makes you feel. This approach helps support your energy, mood and long-term health. Strict diets can add stress. That stress can backfire and make healthy...

Woman holding pill in hand at desk

What Is Bioavailability? How to Make Sure Your Supplements Actually Work

If you take supplements and want to get what you’re paying for, bioavailability is a big deal. How do you know your body will be able to absorb and actually use a supplement? What if the fillers that make the supplement easier to consume are actually causing you harm? These...

hand holding white supplements

Top Supplements for Stress

In addition to quality sleep, fueling up with nutritious foods and exercising, there’s another tool in the self-care toolbox that can help fight daily stress: supplements. They provide an extra dose of calm by filling in any nutritional gaps left behind from our diets. From familiar ones like vitamin C...

Energy + Focus vs. Clarity + Focus: What’s the Difference?

Balancing life and work can feel like an uphill battle. Brain supplements help you stay focused and sharp by ensuring your brain has the tools it needs to perform like a fine-tuned machine. Two Bulletproof brain supplements, Energy + Focus and Clarity + Focus, work in pretty different ways. Read...