The Field Theory shake is a nutritionally complete daily meal built upon the science of healthy aging and made entirely from whole foods. To make it simple and convenient to prepare (and eliminate those pesky excuses), we offer it as a ready-to-mix powder. Mix with water, give it a shake, voila.

Biological aging begins to accelerate in midlife. For people motivated to take charge and have more control over how they age, improving diet quality is the first and most important step.

Quick Fact: Stanford scientists have found that aging accelerates in waves around ages 44 and 60.

A daily Field Theory shake makes it easy to get whole-food nutrients like fiber, protein, polyphenols, and omega-3s in amounts that preserve muscle, support metabolic and cardiovascular health, reduce inflammation, and maintain gut integrity.

Here are a few of the ways:

• Field Theory is a food, not a supplement
• All nutrients are naturally occurring in our whole food ingredients; we do not use any synthetic (lab-made) or artificial ingredients
• We are crafted to support the biology of aging in midlife adults; we are not an all in one for everybody and everything shake
• We tell you exactly how much of key healthy-aging compounds like polyphenols, carotenoids, and omega-3s are in each serving

A Field Theory shake is slightly sweet, with hints of vanilla and nut.

Our company was founded by Kevin Appelbaum, and a team of clinicians, food scientists, and product developers who've spent decades focused on improving health through better nutrition.

Fun Fact: Kevin's last company developed new treatments for diet- and age-related diseases using whole food nutrition and technology, including the first FDA-approved treatment for type 2 diabetes that wasn't a drug. Now, he's focused on using preventive nutrition to support healthier aging.

No. While supplements can help address nutrient deficiencies, Field Theory is a nutritionally complete meal designed to prevent deficiencies in the first place.

Easy. As a meal, mix 2 scoops with 16-18 oz of cold water and shake or blend. We suggest doing this without ice, and then adding a few cubes when thoroughly mixed. For a quick and healthy snack, mix 1 scoop with 8 oz of water.

With rare exceptions, consistency is the most effective approach for optimal nutrient absorption and long-term health. With consistent use, many report steadier late-morning energy and fewer cravings. Protein intake to start the day becomes consistent, fiber increases by about one-third, and polyphenol intake reaches levels rarely seen in American diets.

Field Theory replaces most supplements, lower quality protein and nutrition shakes, and overly processed convenience foods.

Did you know? Most nutrition shakes are made from synthetic (lab-made) vitamin premixes and a sweetened protein base. Trace amounts of whole foods may be added to support packaging claims using words like "whole foods, superfoods, greens, omegas, antioxidants..." and so on. Or the very impressive sounding "80+ ingredients" implying that more is better. But in most cases these whole food ingredients are a bit like pixie dust, and in such small amounts, they offer little to no benefit.

Yes. The combination of 26g of protein and 11g of fiber in each serving slows digestion and helps you feel full longer.

Field Theory is made from 100% whole foods, selected for their purity and nutrient density. You can find more information here.

The Field Theory shake is sweetened with Organic Coconut Palm Sugar, and small amounts of Organic Vanilla Bean & Natural Flavors, Sea Salt, and Stevia.

We do not use any of the following ingredients in our products:

• Soy
• Dairy
• Gluten
• Lab-made, synthetic vitamins
• Artificial colors, flavors, or sweeteners
• Corn syrup
• Sugar alcohols like erythritol
• Carrageenan
• Genetically modified organisms
• Inulin
• Animal products

Yes, Field Theory is free of all common allergens.

You can find detailed nutrition information here.

Not yet. Currently, 84% of our ingredients are USDA-certified organic (by weight). All of our ingredients are free of genetically modified organisms (non-GMO).

Polyphenols are a type of phytonutrient naturally occurring in colorful fruits, vegetables, and herbs that help the body manage oxidative stress and inflammation. As we get older, they play a key role in supporting brain health, circulation, and cellular resilience across multiple systems.

Quick Fact:  Older adults often consume 50–70% less polyphenols than levels associated with reduced risk of cognitive decline, inflammation, and chronic disease.

Omega-3 fatty acids support brain, heart, and joint health. In midlife, they contribute to cognitive function, help regulate inflammation, and support long-term cardiovascular wellness.

Quick Fact: More than 90% of U.S. adults fall short on omega-3 intake, despite research linking adequate levels to 30–40% lower risk of age-related cognitive and cardiovascular issues.

Vitamins & minerals ("micronutrients") like B vitamins, vitamins C, D, E, K, magnesium, iodine, zinc, and selenium power enzyme systems, antioxidant defenses, and structural maintenance.

A complete protein contains all nine essential amino acids that the body can’t make on its own, making it vital for maintaining muscle, metabolism, and tissue repair. In midlife, getting enough high-quality protein becomes increasingly important to prevent age-related muscle loss (sarcopenia), support metabolic health, and maintain physical function.

Quick Tip: After age 40, adults can lose up to 1–2% of muscle mass per year—yet nearly half fall short on daily protein needs, and 80% don’t get enough resistance exercise to protect strength and function. Protein alone isn’t enough—muscle needs both nutrition and use to stay strong.

Fiber helps maintain healthy blood sugar and cholesterol levels, supports weight management, and nourishes the gut microbiome linked to immune and inflammatory regulation.

Quick Fact: Adults should get 25–38 grams of fiber per day, but fewer than 1 in 10 Americans meet that target—and intake tends to decline with age.

While you can place a one-time order, most of our members prefer a continuity plan where you save on each bag, receive convenient automatic shipments, and have full control over your delivery frequency.
Here are some of the benefits:

• Save 10% off each bag
• Flexible delivery every 4, 6, or 8 weeks
• Cancel any time
• No hidden fees
• Easily pause, delay, or change order frequency
• No surprises with pre-shipment reminders

Field Theory may be eligible for reimbursement with FSA/HSA funds through our partnership with Truemed, pending provider approval. You can learn more here.

We offer an exclusive discount for military, first responders, government employees, and teachers through GovX. Once you create and sign in to your GovX account, your discount will be automatically applied at checkout. Learn more here.

If you're not satisfied with your first order, contact us within 30 days and we’ll refund the purchase price, minus shipping. We do not provide refunds for purchases made using a discount code.

We sent you a shipping confirmation email with a tracking number as soon as your order left our warehouse. If you don’t see it, check your spam or promotions folder—or search your inbox for emails from customercare@field-theory.com.

We offer flat rate shipping for $9 on all U.S. orders. We ship from our warehouse in Bend, Oregon using USPS or UPS, Monday through Friday. Most orders (95%) are delivered within 4 to 5 business days.

Our ingredients are consciously sourced from reputable farms around the world, some of which our team has known for more than 25 years. Our ingredients are 84% organic; 80% are grown in the USA, and the remainder are from Indonesia, Africa, Peru, Japan, Canada, Austria, Australia, India, and Portugal.

California’s Prop 65 requires a warning label if a product may expose consumers to any of over 900 substances—many of which occur naturally in plant-based ingredients.

Every batch of Field Theory is tested to ensure heavy metals stay well below safety limits set by the FDA.

Every ingredient and every final batch is tested for identity, quality, and purity, including microbial contaminants and heavy metals. Each production batch is tested by a third-party lab in accordance with FDA guidelines to verify the actual nutrient amounts match label claims. In fact, you can view the most recent Certificates of Analysis here.

Field Theory products are made and packaged in a state-of-the-art, FDA registered, pharmaceutical-grade facility in the sunny southwestern U.S.

You can reach out to us directly at medical@field-theory.com.

Download our white paper to learn how Field Theory can best support your patients and clients. Let us know if you would like information on dispensing Field Theory products, or have questions.