Eat real food.
the rest.
We fill your whole food gaps with science-backed
essentials for confidence, energy, and longevity.
What if you could feel completely confident that you're getting everything you need to thrive?
It's an experience plant-based eaters know all too well:
A colleague or friend, after seeing your lunch, begins to pepper you with questions about protein, iron, evolution, or the latest diet trend.
Then they'll share a scary quote from an Instagram doctor or an article that features new research on deficiencies in a plant-based diet.
No matter how good you feel about your choices, it's only natural for those questions to creep into the back of your mind…
Sowing tiny seeds of doubt that you may not be making the right choice for your long-term health.
Instead of trying to ignore the nagging concerns in the back of your mind…
Instead of trying to ignore the nagging concerns in the back of your mind…
What if you could feel completely confident that you're getting everything you need to thrive?
Optimizing your nutrition with hard-to-get nutrients means:
Waking up each morning with a clear, rested mind.
Ditching the afternoon slump and replacing it with focused productivity.
Establishing an elevated healthspan for years to come.
Science-backed nutrient solutions to help you feel your best today and set you up for a vibrant life.
Waking up each morning with a clear, rested mind.
Ditching the afternoon slump and replacing it with focused productivity.
Establishing an elevated healthspan for years to come.
Science-backed nutrient solutions to help you feel your best today and set you up for a vibrant life.
COMPLEMENT Essential 30 Servings
COMPLEMENT Essential 30 Servings
✔ Supports all-day energy, immune, heart, & brain health.
✔ Promotes foundational health & longevity.
✔ Helps regulate normal metabolism.
✔ Third-party tested.
✔ 100% compostable pouch.
✔ Essenced with peppermint.
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COMPLEMENT Essential 30 Servings
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| Optimized for Plant-Centered Diets | |||
| Evidence-Based Dosages | |||
| 470mg of Omega-3s DHA/EPA | |||
| Published 3rd-Party Test Results | |||
| 100% Compostable Packaging |
What Can Complement Essential Do For Me?
SUPPORT ALL-DAY ENERGY
Vitamin B12, magnesium, and zinc help extract energy from food and present it in a physiologically usable form to promote lasting, balanced energy.
PROMOTE LONGEVITY & HEALTHSPAN
The 8 essential nutrients support cellular health, metabolism, and immunity, forming a foundation for lasting vitality and healthy aging.
SUPPORT IMMUNE DEFENCES
Vitamin D3 helps regulate both innate and adaptive immune responses. Zinc supports metabolic reactions that keep the body healthy.
PROMOTE HEART HEALTH
DHA and EPA omega-3 fatty acids help keep the heart and circulation clear and healthy. Vitamin K2 supports the cardiovascular system properly.
HELP REGULATE NORMAL METABOLISM
Iodine and selenium work together to maintain healthy thyroid metabolism, and magnesium helps convert nutrients into usable cellular energy.
AID BRAIN FUNCTION
Vitamin B12 drives key metabolic reactions that extract energy from nutrients, supporting neurotransmitter function to keep your mind sharp, alert, and focused.
Customers Speak
Real reviews from real plant-based eaters…
Love all-in-one daily approach
Feel the boost of energy
Do it for today and tomorrow
Meet our in-
house doctor.
Chief Medical Advisor and Co-Formulator.
DR. JOEL KAHN, M.D.
CARDIOLOGIST, PROFESSOR OF MEDICINE, AUTHOR
“Through my research and work with thousands of patients at the Kahn Longevity Center, the evidence shows that all diets are subject to deficiencies. A healthy plant-based diet is no exception.
Together with Complement, we have identified the 8 critical nutrients that can be difficult to adequately obtain from plants, and the science-backed dosages necessary to ensure your plant-based diet is protecting your long-term health and well-being.
Complement Essential is the first capsule of its kind, and I recommend it to all of my plant-centered patients.”
Recommended By Experts
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Dr. Laurie Marbas
Plant-Based Physician and Host of Dr. Laurie Marbas Podcast
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Matt Frazier
No Meat Athlete Founder and New York Times Bestselling Author
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Ocean Robbins
Food Revolution Network CEO
Third-party tested.
This means that every ingredient and dosage on the back of the bag is verified by an independent lab. And just as important, the ingredients are tested for things like pesticides, E Coli, heavy metals, and salmonella.
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Potency
We verify that all active ingredients on the label are present in the right amounts. But we're not satisfied with just meeting those - to ensure potency over time does not diminish, we aim for 10-20% over what the label states.
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Heavy Metals
We take soil and water pollution seriously, especially since we design our products to help your body fight against it. Therefore, each batch gets tested for Arsenic, Cadmium, Lead and Mercury.
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Pathogens
Our products are doubly protected by being produced in a certified facility, and tested for yeast and mold, and possible bacterial presence, such as Salmonella, E.coli and other coliforms.
Do Plant-Based Eaters Need A Multi (When Their Food is Already Healthy)?
As a plant-based eater, you’re already following the healthiest and most responsible diet on earth, enjoying an abundance of most nutrients with every meal and supporting foundational long-term health. But, if you rely on whole foods alone, chances are you’re still missing a few key nutrients — and there’s (almost) nothing you can do about it.
A lack of complete nutrition can, at best, make you function at less than your peak. At worst, it can lead to serious health problems down the line.
But don’t take our word for it…
Look at the Statistics
- Up to 86.5% of adult and elderly vegetarians are at risk for Vitamin B12 deficiency. That affects their energy and brain function.
- More than 41% of Americans are deficient in Vitamin D, which is crucial for bone and immune health, as well as many other systems. Several health experts believe that D should also be taken in combination with Vitamin K2, to ensure the safe transport of calcium in the bloodstream.
- Despite having access to iodized salt, mild-to-moderate iodine deficiency is a public health concern in 30+ countries. Iodine is key for the metabolism.
- Due to plant compounds that reduce absorption, vegetarians may need 50% more zinc than omnivores. Low zinc levels can impair immune system function.
- Most vegans get their omega-3s from nuts, seeds, and oils. These contain alpha-linolenic acid (ALA), which converts to DHA and EPA in the body, but at a very poor rate. Research shows that only 8% of dietary ALA is made into EPA in healthy young men, and 4% or less converts to DHA.
Why Our Omega-3s Set Us Apart
DHA and EPA — two powerful omega-3s — are essential for brain, heart, and immune health. But most multis either leave them out or include amounts too small to matter.
Why? Because omega-3s are expensive.
At COMPLEMENT, we don’t cut corners. That’s why each serving of COMPLEMENT Essential delivers 470mg of DHA + EPA, over 48% more than other leading multivitamins.
And unlike fish oil, our omega-3s come directly from algae, the original source. It’s purer, more sustainable, and better for the planet.
This isn’t just a “nice to have.” It’s a must-have, especially for whole food plant-centered eaters who aren’t getting DHA and EPA from diet alone. It’s the most expensive part of our formula... and the one we’re most proud of.
So what’s going on here?
Why can’t plant-based
eating alone cover all bases?
Here are 3 good reasons:
Your food is weaker than it used to be.
A United Nations’ study reports that 33% of the world’s soil resources are degraded — largely due to industrial agriculture. Poor soil quality negatively impacts the nutrition in our food, as well as its production and sustainability.
You eat the same stuff.
Think about how many of the same foods and meals you eat week after week. A review in Molecular Metabolism revealed that 75% of the world’s food comes from only 12 plants and five animal species. That’s not enough variety to ensure optimal nutrition.
Your body can’t absorb some nutrients, and can’t access others.
Plant-based sources of vitamin B12 and Vitamin D aren’t as bioavailable as their animal counterparts, and omega-3 fatty acids like DHA and EPA are nearly impossible to obtain in adequate amounts from a standard plant-based diet.
So what’s the solution?
In some cases, eating more of specific foods rich in the hard-to-get nutrients might help, since that would add more of those nutrients into your diet. But that's not always practical (you'd have to be munching seaweed all day every day to get enough DHA and EPA omega-3s, for example — and then you'd overdose on sodium and iodine).
You could also add individual supplements to your diet to fill in the gaps, but then you’d have to micromanage each one to make sure you’re getting enough, and in the right amounts. Plus, the cost of those individual bottles would add up quickly.
So how about taking a typical multivitamin?
Well, now you’re overcorrecting the problem, paying for a bunch of nutrients you’re already getting from your plant-based diet. You’ll end up peeing out the excess. Talk about money down the drain… And you’re still not getting those omega-3s.
Try Complement Essential (and Feel the Difference)
Now there’s an all-in-one multinutrient supplement that contains only the essential nutrition proven to be lacking in most plant-based diets, and nothing extra.
Good Guys Wear Black
Omega-3 fatty acids - including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) - are critical for the proper structure and function of cell membranes. They help keep your brain, heart, and immune system healthy*. Most people don't get enough omega-3s, especially plant-based eaters, and they mistakenly believe that fish and fish oil are the only sources.
Good thing that's not true, because there aren't enough fish in the ocean to provide the world's population with the DHA and EPA it needs.
Health organizations recommend getting 250-2,000mg of DHA and EPA, combined, daily for optimal health, but scientists have calculated that, based on an intake of just 500mg daily, it would take...
1.2 million more tons of DHA and EPA than what is currently available to serve the world's population - and fish only supply 15% of the global demand.
But hold on a minute…
Fish get their omega-3s by eating algae, so why not just go straight to the source? Algae grows quickly and doesn’t contribute to overfishing, so it’s more sustainable than harvesting fish. Algae oil is a potent source of omega-3s, and research has shown that algae oil production puts less strain on the ecosystem than that of fish oil — and will continue to, even with increased demand.
The unprocessed, unrefined algae oil used in Complement Essential contains additional beneficial compounds, such as carotenoids, omega-7 fats, and chlorophyll, which gives it a dark green color that appears nearly black.
Frequently asked questions.
Find answers to your questions here.
What are the nutrition facts?
What are the nutrition facts?
What makes Complement Essential different from a regular multivitamin?
What makes Complement Essential different from a regular multivitamin?
Complement Essential is formulated specifically for people eating a plant-based or mostly plant-based diet. Instead of providing every possible vitamin and mineral (many of which you may already get from whole foods), it focuses on a core set of nutrients that are often underconsumed on plant-forward diets, such as Vitamin B12, D3, K2, iodine, zinc, magnesium, selenium, and vegan-sourced DHA/EPA omega-3s. This avoids over-supplementation and ensures you’re covering real nutritional gaps.
Who should take Complement Essential?
Who should take Complement Essential?
It’s ideal for vegans, vegetarians, or anyone whose diet is low in animal-derived foods. It’s also useful for people who live in areas with limited sun exposure (impacting Vitamin D levels), those who don’t regularly eat algae or seaweed (source of DHA/EPA omega-3s), or simply anyone wanting a convenient, evidence-based “nutrient insurance” to support long-term health.
When and how should I take it for best results?
When and how should I take it for best results?
For best results, take three capsules daily with a meal. This helps maximize absorption of fat-soluble vitamins (like D3 and K2) and omega-3s, and reduces the chance of stomach discomfort.
Is this supplement safe for everyone?
Is this supplement safe for everyone?
While Complement Essential is designed for most adults following a plant-based or mixed diet, we recommend consulting a healthcare provider before starting especially if you are pregnant, nursing, on medication, or have a pre-existing medical condition. If you wish to give it to younger children, please consult with your doctor or pediatrician and show them the full ingredients list to determine its suitability and dose.
What is the suggested use?
What is the suggested use?
For adults and children over 12, take 3 vegan capsules daily, preferably with a meal. Store in a cool, dark place. Please recycle the glass bottle after use.
Can I take Complement Essential together with other supplements or multivitamin?
Can I take Complement Essential together with other supplements or multivitamin?
Complement Essential, together with a whole-food, plant-based diet, will provide you with the nutrients you need to thrive. Formulated for optimal nutrient intake, It is safe and non-toxic when taken as directed. If you take another supplement that contains any of the nutrients found in Complement Essential, you may exceed the tolerable upper intake for that nutrient. Speak with your doctor if you have any questions about how our product works with any other supplements or medications you are taking.
Do I still need to eat a balanced diet if I take this multivitamin?
Do I still need to eat a balanced diet if I take this multivitamin?
Absolutely. it is meant to supplement a healthy, plant-based diet — not replace it. Whole foods provide fiber, phytonutrients, and a broad spectrum of vitamins, minerals, and antioxidants that supplements cannot fully replicate.
What if I get enough nutrients from food already — is this still useful?
What if I get enough nutrients from food already — is this still useful?
Even with a varied plant-based diet, some nutrients like Vitamin B12, vitamin D (especially with limited sun), and DHA/EPA omega-3s are notoriously difficult to get in optimal amounts from plants alone. Our product acts as nutritional insurance to cover those common shortfalls.
How long until I notice benefits?
How long until I notice benefits?
Supplements are not magic pills — results vary based on diet, lifestyle, and individual biology. Most people may feel improvements (energy, mood, immunity) within a few weeks if they were deficient; for long-term benefits like bone health or heart support, consistent daily use over months is recommended.
Are the ingredients in Complement Essential vegan and cruelty-free?
Are the ingredients in Complement Essential vegan and cruelty-free?
Yes, Complement Essential contains no animal-derived ingredients. The omega-3s come from sustainable, plant-based (algal) sources, and the formula is free of gelatin, dairy, or other non-vegan components.
Does contain soy, nuts, gluten, GMO's or artificial ingredients?
Does contain soy, nuts, gluten, GMO's or artificial ingredients?
DOES NOT CONTAIN: Soy, nuts, yeast, gluten, MSG, genetically modified organisms, artificial colors or flavors, fish, dairy, eggs or other animal-sourced ingredients.
What does it taste like?
What does it taste like?
Being a capsule, it should be swallowed without holding it in the mouth, so there shouldn't be a specific taste. To enhance the experience, however, we include a peppermint tab in each pouch that provides a beautiful mint essence to each capsule.
Why did you make the capsules black?
Why did you make the capsules black?
The unprocessed and unrefined oil used in product naturally contains other beneficial compounds including carotenoids, Omega-7, and Chlorophyll — which gives it a dark green color that appears nearly black.
Do I need to take 1 capsule 3 times a day?
Do I need to take 1 capsule 3 times a day?
Not at all! There shouldn't be any difference between taking all three capsules with a single meal, or spacing them throughout the day.
The one thing that is somewhat important is taking them with a meal that contains at least some amount of fat, as this will help with the absorption of the nutrients.