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.

man adding collagen protein powder to a blender

Is Collagen Good for Men?

Radiant, hydrated skin and healthy, silky hair. These are just some of the benefits that have made collagen a coveted supplement for women. But since collagen is an abundant protein produced by all humans, it begs the question: Is collagen good for men, too? The answer to that is a...

inside of a fridge with health keto foods

Keto Meal Plan

Stuck in a keto food rut? You’re not alone. Following a low-carb, high-fat diet does have its benefits—weight loss, blood sugar management and even prevention of some serious health conditions. But it can also leave you feeling bored from eating the same foods repeatedly, like meat and cheese or bacon...

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The Best Time to Take Magnesium

Behold, magnesium, the MVP of supplements. But, “When is the best time to take magnesium?” This important mineral has been supporting more than 300 functions in the body since you were born, but it’s only been getting the recognition it deserves as of late. Some of its most celebrated benefits...

10 Keto Snacks to Make Today

Being careful about what you eat can be challenging, especially because of the time-consuming prep of keto foods. And even if you’ve done all the work, you might forget one thing: snacks! Make sure to factor in keto snacks into your meal planning to help you reach your nutrition goals....

display of green vegetables

High Protein Foods to Work into Your Diet

You can’t get far in learning about nutrition without first talking about protein. Protein is one of three essential macronutrients aka macros (the other two are carbohydrates and fats). The building blocks of protein are amino acids. Getting enough high protein foods in your diet is essential for repairing and...

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10 Low Carb Snacks to Make Today

If you’re following a keto diet, live a low-carb lifestyle or are just trying to manage your macros, low-carb foods make up most of your meal planning. But have you factored in low carb snacks? When the afternoon slump sets in and dinner is still hours away, don’t get caught...

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Probiotics for Women

Call it a “gut feeling” if you will, but the body craves probiotics. Probiotic supplements are live microorganisms that deliver “good bacteria” to the gut. This can lead to reduced discomfort, healthy brain function and support a well-balanced digestive system. Probiotics are naturally found in certain foods, such as yogurt,...

bulletproof collagen peptides and french press coffee

Liquid Collagen vs Collagen Powder: What’s the Difference?

And liquid collagen vs. powder: what’s the difference? This article gives you the full scoop on what collagen is and the differences between liquid and powder collagen. Have you been searching for the best way to enjoy the health-boosting benefits of collagen? You’ve likely come across two popular options: liquid...

Bulletproof Unflavored Collagen and Coffee

Your Guide to Science-Backed Solutions for Healthy Aging

Aging well is possible with the right tools and habits. Surprisingly though, in recent years, life expectancy for US adults dropped to levels last seen in 1944. As of 2020, the average American can expect to live to age 77, according to the Centers for Disease Control and Prevention (CDC)....

A spread of fresh meats, eggs, and cheeses

What is the Cyclical Ketogenic Diet (CKD)?

The keto diet involves eating very small amounts of carbohydrates and higher amounts of fat to burn more body fat as fuel. While the standard version does not allow much variance in the ratio of macronutrients, the cyclical ketogenic diet is more flexible. How exactly does this strategy work? And...

Person sipping iced coffee through a straw

Cold Brew vs. Iced Coffee: What’s the Difference?

When the sun’s out, hot coffee might not hit the same. That’s usually when cold brew and iced coffee start sounding a lot more appealing. Whether you brew it at home or grab one from your favorite café, cold coffee feels like the perfect pick-me-up on a warm day. But...

This Yoga Nidra Routine Will Make You Feel Like You Got a Full Night’s Sleep_header

What is Yoga Nidra and can it replace a full night’s sleep?

There’s no substitute for a full night’s sleep, but there is a particular combination of meditation and yoga that comes close: yoga nidra. Yoga and meditation experts believe that one 30-minute practice of yoga nidra can be very restful for those who have trouble sleeping. While more conclusive studies are...

Alarm clock on plate

How to Do an Elimination Diet: Steps, Benefits & Meal Plan

The Complete Guide to Starting an Elimination Diet Do certain foods leave you feeling bloated, drained of energy or with brain fog? If so, the reason could be on your plate. An elimination diet can help spot hidden food sensitivities and intolerances by systematically removing and reintroducing foods. Around 20%...

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MCT Oil Benefits: 5 Science-Backed Reasons to Use MCT

These days, you can find versions of Bulletproof Coffee (aka coffee with butter and MCT oil) most places you drink coffee. But what do you know about that last ingredient? MCT oil is a powerful addition to your daily routine, one that can power your brain and help you burn...

Hand pouring a scoop of Bulletproof Unflavored Collagen Peptides into a cup of coffee

Collagen vs. Collagen Peptides: What’s the Difference?

Collagen is the body’s most abundant protein, and is instrumental in supporting skin, nails, joint and hair health. Unfortunately, as is the case with all good things in life, our collagen levels don’t remain the same. As we grow older, the body’s natural collagen production decreases, leading to the formation...

Woman in bed with her eyes peering over the blankets

Why Is Sleep Important? Benefits Of Getting Enough Rest

Sleep is one of the pillars of high performance. Your whole body runs better after a good night’s sleep, and considering that struggles with occasional insomnia are common, it’s worth your time to learn how to improve your sleep so you get the most restorative rest possible. The benefits of...