Complete Nutrition Shake
Clinically-formulated to help maintain muscle mass, support brain and heart health, balance metabolic function, and protect your body’s natural defenses.
Who it's for
Designed for adults in their 40s, 50s, and beyond who want to protect their health and feel their best in the years ahead, without making food a full-time job.
It’s for:
- People who prioritize long-term health but don't always have time to cook.
- Parents, professionals, and caregivers navigating busy lives.
- Anyone tired of juggling protein powders, greens blends, and a cabinet full of supplements.
- Anyone ready to turn daily nutrition into a smart, sustainable habit.
If you’ve ever asked, “What’s one thing I can do each day to feel better now and protect my health later?” this is it.
What Customers Are Saying
"Finally. A shake without tons of weirdo ingredients. I don't need a multivitamin. I need food. Field Theory gets it right."
"At 63, I'm still surfing, doing jujitsu, skiing, and lifting. The same activities I've loved since rowing in college. Field Theory's science-based formula provides the nutrition I need to maintain my lifestyle without a cabinet full of supplements or the mental load of tracking everything."
"This is my in-between meetings, packed work day life-saver! I put cold water in my travel mug, give it a good shake, and that’s it. Doesn’t clump, doesn’t need anything else, easy to sip and go."
What It Replaces
To match the whole food nutrition in one Field Theory shake, you'd need this:
☐ Non-fat Greek yogurt (4 oz) .......... $1.12
☐ Wild-caught salmon (1.5 oz) .......... $2.34
☐ Organic blueberries (3/4 cup) ........$2.56
☐ Raw walnuts (7 halves) .......................$0.31
☐ Chia seeds (1 tbsp) ..............................$0.24
☐ Organic baby spinach (2 cups) .....$1.20
☐ Cooked lentils (1/3 cup) .....................$1.25
☐ Matcha green tea (1 tsp) ...................$0.62
Cost per meal: $9.64
Prep time: 25-30 minutes
Cleanup: 10-15 minutes
Ingredients to buy, store, prep: 8
Or just:
Field Theory Complete Nutrition Shake
Cost per meal: $6.60
Prep time: 2 minutes
Cleanup: Rinse one shaker
Ingredients: Already combined, perfectly portioned, nothing wasted
Save $3.04 per meal. Save 35+ minutes. Same whole food nutrition.
Based on Whole Foods Market prices, January 2026.
How to use
Drink as a complete meal, especially when time is tight.
Here's how:
- Add 16-18 ounces of cold water to a blender or shaker
- Add 2 scoops of Field Theory
- Shake or blend until smooth
- Add some ice after blending if you like it extra cold
- Drink and feel good - your future self thanks you
Pro Tips:
- For a satisfying snack, mix 1 scoop with 8 oz of water
- Great before of after a workout, a dog walk, school drop off or a lunchtime meeting that goes long
- Use a blender bottle with a shaker ball for best texture
- Adjust water to your preference - thick or thin, it's your call
- Drink soon after mixing for best taste and texture
Shipping & Returns
We ship to US commercial and residential addresses. Subscription orders ship free.
We offer flat-rate shipping for $5.00 on all one-time orders and deliver 95% of orders between 4-6 business days. You will receive an email containing tracking information once your order ships. If you don’t see it, check your spam or promotions folder or search your inbox for emails from customercare@field-theory.com.
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 accept returns, exchanges, or issue credit for unused products for safety and quality reasons. If you have received a damaged product or believe your order is incorrect, please let us know within 14 days of purchase so we can make it right. Email us at customercare@field-theory.com.
See How Field Theory Compares
| Thorne Whey Protein | AG1 | Field Theory | |
|---|---|---|---|
| Type | Protein supplement | Daily supplement | Complete meal |
| Calories | 100 | 40 | 290 |
| Protein | 21g | 2g | 26g |
| Fiber | 1g | 2g | 11g |
| Fat | .5g | 1g | 9g |
| Fills you up | |||
| Whole foods | |||
| Vitamins & minerals | |||
| Polyphenols | |||
| Omega 3s & plant sterols | |||
| Designed for | Everyone | Everyone | Adults 40+ |
| Best use | After workout | With meals | As a meal |
| Cost per serving | $2.15 | $2.65 | $6.60 |
Polyphenols:
Nutrients found in berries, veggies, coffee, tea, nuts, and turmeric. 1,000-1,500mg per day improves heart and brain health, controls blood sugar, and reduces the risk of chronic disease.
Omega 3s & plant sterols:
Nutrients found in fatty fish (salmon, mackerel, sardines), flaxseeds, chia seeds, and walnuts. 1.5-2g per day helps manage cholesterol and reduce the risk of heart disease.
Can combine:
Whey + Field Theory works. Field Theory + AG1 overlaps.
| Field Theory Complete Nutrition Shake |
Kate Farms High Protein Nutrition Shake |
Ka'Chava All-In-One Nutrition Shake |
Ensure Complete Nutrition Shake |
|
|---|---|---|---|---|
| Complete protein (25g or more) | ✓ | ✓ | ✓ | ✓ |
| Made from 100% whole foods | ✓ | |||
| Fiber > 8g | ✓ | |||
| Added sugar <5g | ✓ | ✓ | ✓ | |
| Optimized for adults 40+ | ✓ | |||
| Quantified polyphenols and omega-3s | ✓ | |||
| No synthetic micronutrients | ✓ | |||
| No artificial colors or sweeteners | ✓ | ✓ | ✓ | |
| No corn syrup, dairy, soy, gluten | ✓ | ✓ | ✓ |
Just Two Scoops
Protein
26g
Fiber
11g
Omega-3 Fatty Acids
1,650mg
Polyphenols
1,005mg
Healthy aging micronutrients
26
Synthetic ingredients
0
FAQs
How is Field Theory different than other nutrition products?
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
Do I need to drink a Field Theory shake every day?
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.
How do subscriptions work?
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 20% on your first subscription order
- Save 10% off recurring deliveries
- 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
What products does it replace?
Field Theory replaces most supplements, lower quality and general purpose 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.
How does it taste?
A Field Theory shake is slightly sweet, with hints of vanilla and nut.
Will a shake keep me full?
Yes. The combination of 26g of protein and 11g of fiber in each serving slows digestion and helps you feel full longer.