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.

Supplements on empty plate

Can You Take Supplements While Fasting? Everything You Need to Know

Fasting means abstaining from food for a specific period. There are many ways to do it, the most common being intermittent fasting, where you alternate between eating and fasting windows. Extended fasting lasts 24 hours or more, like the 48-hour fast. Another popular method is time-restricted eating, where you consume...

Woman with head on gray pillow

Melatonin for Sleep: Does it Work?

When you have low energy and feel groggy in the morning, consider taking melatonin for sleep. According to the CDC, more than a third of us in the United States aren’t getting enough quality sleep. Things in our everyday life, from stress and excess screen time to jet lag and...

Bulletproof The Original coffee, Brain Octane Oil and butter on countertop by cup of black coffee

Is Bulletproof Coffee Good for You? Why You Want Quality Fats in Your Coffee

If butter makes everything better, then butter coffee sounds like a double win. Bulletproof Coffee is a blend of three hard-working ingredients: grass-fed butter, Brain Octane C8 MCT Oil and clean coffee. But if you’re new to the world of keto coffee, butter and MCT oil in your coffee may...

Dish of avocados filled with eggs, bacon & chives

Is Going Low-Carb Right for You?

Among the endless list of popular diets, the unsung hero is undoubtedly the low-carb diet. Unlike stricter regimens, opting for low-carb offers flexibility when it comes to your food choices. Dieting is not a one-size-fits-all approach, and the low-carb diet plan allows for more customization. Not ready for keto? Not...

How to Make Cold Brew Coffee

There’s something special about refreshing cold brew, and it isn’t just the caffeine. It’s the clink of ice in a glass, the steady pour, that first crisp sip of chilled coffee. When you compare iced coffee vs. cold brew, they’re totally different experiences. Keep reading to find out what makes...

Woman holding glass of water & touching her head with a distressed look on her face

What Is the Keto Flu? What to Do When Keto Makes You Crash

You’re starting the ketogenic diet, and you’re psyched to reap all those keto health benefits you’ve heard about: increased fat burning, lasting energy and supreme focus. But instead, you start to feel irritable at the breakfast table, your energy levels are dipping and you’re having trouble sleeping at night. Bad news: You’ve...

A woman in white workout gear stretching her arm with yoga blocks beside her

Best Collagen Peptides Benefits for Skin, Joints & More

Collagen supplements are everywhere—coffee creamers, gummy vitamins and protein bars. And for good reason: benefits of a daily scoop may include healthy skin, bones and joints. Even A-list celebrities swear by collagen peptides to help maximize their body’s potential and age gracefully. But with so many collagen supplements on the...

Variety of foods with varying amounts of net carbs

How to Calculate Net Carbs on Keto And Why Not All Carbs Are Equal

If you’re new to the ketogenic diet, you might ask, “What are net carbs? Why should I care?” On a lower-carb diet, net carbs vs. total carbs are a big deal. Every gram of carbohydrate you eat counts. It’s essential to know how to calculate net carbs so you don’t...

Stressed man in yellow sweater at home

How Stress and Gut Health are Interconnected

Have you ever had butterflies in your stomach? It’s no secret that life stress is linked to gut issues. Studies show the relationship between the two is bi-directional: stress in your life can cause gastrointestinal distress, and gut issues can actually cause psychological stress. Read on to learn how this...

Woman slicing butter on cutting board

Why Does Fat Make Food Taste So Good?

Bacon, ice cream, a burger and fries — what exactly makes these foods taste so good? You know about sweet, salty, sour, bitter and umami, but can we actually taste fat? Read on for the science behind why we crave fatty foods. Is fat a flavor we can taste? We...

Keto Strawberry Margarita recipe

12 Keto Cocktail Recipes You Can Sip All Summer Long

Who says that you have to go dry when you’re on a keto diet? To make sugar-free, keto-friendly, low-carb-cocktails, just stock your bar with clear liquors, sugar substitutes and flavorless supplements. And it won’t feel like a sacrifice — these keto cocktails taste just as good and may actually leave...

Man with orange juice

7 Ways to Stay Hydrated (That Aren’t Just Drinking More Water)

You know hydration is important. When it’s hot and you’re active, it can be hard to fill your water bottle fast enough to keep up with your hydration needs. Besides, drinking that much plain water gets boring — but sports drinks can be full of added sugar. What are other...

Woman yawning in bed

13 Sleep Tips for When It’s Hot AF

Now that the hot weather is here, you might find that it’s hard to get a good night’s sleep. Heat can affect your sleep quality, as well as deliver all the health problems that sleep loss creates. Here’s what you should know about sleeping in a heatwave, plus tips to...

Person grilling meat with flare-up

Grilling This Weekend? Here’s What to Know About Nitrates

You might have heard that nitrates in meat aren’t great. You don’t tend to think about this until grilling season starts and you head to the grocery store. That’s when the question tends to pop up in the back of your mind: What meats have nitrates? Why are they such...

Man and woman hiking up the side of mountain against an oceanscape in the background

How to Stay Keto While You’re in the Great Outdoors

When we set out to explore the intersection of keto, hiking, and other outdoor activities, our focus was clear: the ketogenic diet is ideal for endurance hikes and long-distance backpacking. By burning fat for fuel, keto provides steady, lasting energy, allowing more time on the trail and less time feeling...

Yellow turmeric smoothie bowl

Turmeric-Coconut Smoothie Bowl

Turmeric smoothie recipe and content provided by Ryan Carter Spice up your shake routine with this Turmeric-Coconut Smoothie Bowl enhanced withcollagen. Curcumin, the active compound in turmeric, supports health. Your body will love the antioxidant benefits from this wonder-spice, too. There’s one more secret ingredient in this smoothie: cauliflower. (Trust.)...