IM8 vs AG1: Key Differences in Foundational Nutrition and Longevity Doses
Two of the most serious supplements on the market, going head to head.
One was built by the pioneer that invented the daily greens category and refined it over a decade. The other comes from a NASDAQ-listed biotech with researchers from Mayo Clinic, Cedars-Sinai, Yale, and NASA behind the formula.
Both are NSF Certified for Sport, and both will help close nutrient gaps you almost certainly have.
People who stay consistent with either option often report steadier energy, sharper focus, better digestion, and fewer afternoon crashes within weeks. The only real question is which one is built for your body.
AG1 built its reputation on broad-spectrum coverage, a single scoop that replaced multiple pills. IM8 entered the conversation with a distinct premise, prioritizing cellular longevity pathways and impact doses.
No supplement replaces a balanced diet, and neither brand is universally "better." The right fit depends entirely on what you want your foundational nutrition to prioritize.
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Types of Foundational Greens: From Insurance to Optimization
Foundational greens split into three practical categories, and the differences come down to daily intent rather than marketing. Some formulas protect, others optimize, and a third group simply energizes.
Generalist Greens. These use broad whole-food plant coverage as a nutritional insurance policy. AG1 is the reference point here, combining fruit and vegetable powders to fill micronutrient gaps without targeting one specific pathway.
Longevity Blends. These aim at cellular resilience and NAD+ support. IM8 belongs in this group, leaning on compounds like NMN and bioavailable minerals to address aging systems over basic vitamin coverage.
Performance Greens. These prioritize adaptogens and immediate energy. You will often see cordyceps or rhodiola here, making them more useful as situational pre-workout support than as a slow daily foundation.
For most daily supplement buyers, the real question is whether you want maintenance, optimization, or a short-burst lift. Each type answers a different version of the same morning question: what do I want this scoop to do?
Problem to Solution: Matching Ingredients to Symptoms
Daily physical symptoms often point directly toward specific nutrient shortfalls. Start from what you feel, then look at the ingredient that targets it.
| Symptom | Target Ingredient and Purpose | Formula Match |
|---|---|---|
| Tired by 3pm | CoQ10 and methylated B12 support cellular energy production in the mitochondria and promote steady daytime vitality. | Both |
| Getting sick constantly and low winter mood | Vitamin D3 paired synergistically with K2 aids healthy immune defenses and supports seasonal mood balance. | IM8 |
| Bloating and irregularity | A combination of prebiotics, probiotics, digestive enzymes, and postbiotics nourishes the microbiome and smooths digestive transit. | Both |
| Achy joints and stiff mornings | MSM at around 1,500 mg supplies bioavailable sulfur that connective tissues and cartilage use for daily maintenance. | IM8 |
| Wired at night | Magnesium bisglycinate provides a calming, highly bioavailable form of magnesium that encourages neuromuscular relaxation in the evening. | IM8 |
| Eating badly and worried about gaps | A broad spectrum of whole-food greens and botanicals acts as a daily dietary backstop to cover varied micronutrient shortfalls. | AG1 |
| Stressed and running on adrenaline | Balancing adaptogens help modulate cortisol responses and aid the nervous system during periods of chronic fatigue. | Both |
| Headaches after training and cramping | Targeted essential electrolytes maintain optimal cellular hydration balance and support fluid recovery following physical exertion. | IM8 |
| Wanting one product instead of a shelf | A consolidated formula bundles targeted vitamins, minerals, clinical longevity compounds, and joint support into a single morning serving. | IM8 |
Are You Ready to Choose?
IM8 Daily Ultimate Essentials
10% off with our link. Best for longevity and convenience.
90 ingredients with every dosage published on the label.
D3, K2, CoQ10, MSM and electrolytes all in the same scoop, including 50 mcg (2,000 IU) of vegan lichen-derived vitamin D3.
NAD+ precursors and methylated B12 in one daily scoop, streamlining your morning.
Four-tier gut system including a postbiotic AG1 does not have.
AG1 (Athletic Greens)
Best for broad nutrient coverage.
A whole-food base of spirulina, chlorella, and adaptogens that acts as a daily nutritional insurance policy.
Two published trials on the finished product.
Pair it with separate D3 and K2, since the base powder does not include them.
This guide includes affiliate links. If you buy through them, Holisteek may earn a small commission at no extra cost to you.
Nutrient Density and Purity Checklist
A label can list dozens of botanicals, but purity and potency are what actually reach your cells and fuel your morning. Before comparing brands, check these four quality markers.
Third-party testing for heavy metals. Independent lab verification confirms that a powder is free from contaminants like lead, arsenic, and cadmium, something raw ingredient blends often lack without rigorous sourcing.
Fully disclosed dosages with no proprietary blends. Hidden amounts make it impossible to know if you are getting enough of a nutrient to matter. Look for transparent labels that state exact milligrams per serving.
Bioactive forms such as Methylcobalamin instead of Cyanocobalamin. Methylated B12 is the form your body can use immediately, skipping a conversion step that some people's livers handle poorly.
Spore-forming probiotics that survive stomach acid. Many probiotics die before reaching the gut. Strains like Bacillus coagulans are naturally protected and arrive where they can actually work.
The Science Behind IM8
IM8 is a product of Prenetics, a NASDAQ-listed health sciences company. During the pandemic, Prenetics ran PCR testing for the Premier League and Hong Kong airports, then moved into early cancer detection. David Beckham is a co-founding partner.
In 2025, IM8 signed a know-how agreement with Mayo Clinic to develop evidence-based supplements together.
The IM8 Advisory Board
Dr. Dawn Mussallem. Integrative oncologist at Mayo Clinic and founder of its Integrative Medicine and Breast Health Program in Florida.
Prof. Suzanne Devkota. Director of the Microbiome Research Lab at Cedars-Sinai.
Dr. David Katz. Founding director of the Yale-Griffin Prevention Research Center, with roughly 250 peer-reviewed publications.
Dr. James DiNicolantonio. Cardiovascular research scientist with over 250 publications.
Dr. James L. Green. Former Chief Scientist of NASA. 42 years at the agency, including research on how spaceflight accelerates aging in the human body, which is directly relevant to longevity formulation.
Prof. Stephen Anton. Distinguished Professor in Physiology and Aging at the University of Florida.
IM8 Trials in Progress
Prenetics has registered two clinical trials with ClinicalTrials.gov to test the formulation.
The flagship trial, NCT06655597, assigned 60 participants to take Daily Ultimate Essentials for 12 weeks against a usual-diet control group. This represents a longer intervention period than either AG1 study. Results have not been published yet.
As is standard across the supplement industry, Prenetics funded its own clinical studies.
The Science Behind AG1
AG1 Published Trials
The brand has tested its finished product in two dedicated clinical trials.
A double-blind, placebo-controlled trial tracked 30 healthy adults for four weeks. Researchers found enrichment of beneficial gut bacteria, specifically Lactobacillus acidophilus and Bifidobacterium bifidum, the exact strains present in the product.
That confirms the strains survived digestion, with normal safety markers throughout (La Monica et al., Journal of the International Society of Sports Nutrition, 2024).
A second 14-day study in 20 trained adults improved dietary micronutrient adequacy without disrupting microbiome community structure (ClinicalTrials.gov NCT06521424). Athletic Greens funded both studies, consistent with industry norms.
The Value Scale: Monthly Cost vs. Ingredient Impact
| Factor | IM8 | AG1 |
|---|---|---|
| Headline monthly price | Premium tier | $79 to $99 |
| Price per serving | Similar money to AG1 | $2.63 to $3.30 |
| D3 + K2 separately? | Included | Usually added |
| Joint support separately? | Included (MSM) | Needs buying separately |
| Electrolytes separately? | Included | Needs buying separately |
On the shelf, they cost similar money. The difference shows up in your basket. If you already buy D3 drops, magnesium, electrolytes, or joint support, consolidating with IM8 costs less overall. If you buy none of those, AG1's whole-food coverage is genuinely good value.
Materials Matter: Whole Foods vs. Synthetic Optimization
AG1 centers on broad whole-food density, while IM8 targets standalone biochemical compounds at defined strengths.
| Specification | IM8 | AG1 | Lead |
|---|---|---|---|
| Ingredient Count | 90 | 75 | IM8 |
| Serving Size | Single daily scoop | Single daily scoop (12 g) | Tie |
| Calories | Low calorie | 50 calories | Tie |
| Fiber | Includes prebiotic fiber | 2 g dietary fiber | AG1 |
| Dosages Disclosed | Yes, fully disclosed | No, proprietary blends | IM8 |
| Vitamin D3 | 50 mcg (2,000 IU) vegan D3 | Not included in powder | IM8 |
| Vitamin K2 | Included | Not included in powder | IM8 |
| CoQ10 | 100 mg | 60 mg | IM8 |
| MSM | 1,500 mg | Not included | IM8 |
| Probiotic CFU | Spore-forming strains included | 7.2 billion CFU | Tie |
| Postbiotic | Included | Not included | IM8 |
| Digestive Enzymes | Included | Included | Tie |
| Electrolytes | Included | Not included | IM8 |
| Whole-Food Greens Base | Targeted botanical base | Comprehensive raw plant base | AG1 |
| Published Trials | Two registered and pending | Two published | AG1 |
| Storage Requirements | Formulated shelf-stable | Refrigerate after opening | IM8 |
| Certification | NSF Certified for Sport | NSF Certified for Sport | Tie |
Storage matters for counter space and travel: IM8 is formulated shelf-stable, while AG1 needs refrigeration after opening.
IM8 doses its compounds at levels research links to cellular repair and stress resilience. The goal is not general nutrition but targeted longevity support. The flavor profile shifts accordingly; it does not taste like a blended salad.
The trade-off is simple. Whole-food blends offer a familiar sensory experience but lower, less concentrated doses of specific anti-aging molecules.
Precision formulas like IM8 provide higher, measurable concentrations of these compounds but can feel more like a supplement than a food.
This is not about better or worse; it is about alignment with your goals. Your decision depends on whether you prioritize a natural taste or a direct biochemical effect.
How to Decide: Matching the Supplement to Your Bio-Goals
Choosing comes down to three axes that map directly to your morning and your metabolism.
First, look at your priorities. If you want to target cellular aging and NAD+ pathways with higher antioxidant doses, IM8 fits that profile. If you want broad plant-based coverage for digestive regularity and micronutrient gaps, AG1 is the closer match.
Second, check your basket. IM8 includes vitamin D3, K2, and higher selenium inside the powder. AG1 usually needs a separate D3/K2 supplement, which raises the real monthly spend.
Third, weigh your morning convenience. IM8 packs impact doses into one scoop you stir and drink. AG1's modular approach asks you to manage an extra oil or capsule alongside the greens.
Match the formula to your actual gaps, not to the marketing. One simplifies longevity. The other provides nutritional insurance.
Frequently Asked Questions
Key Takeaways
Start from your symptom rather than the brand. Feeling tired at 3pm points toward CoQ10 and B12, which both formulas provide. Achy joints point to MSM, which only IM8 includes. Suboptimal eating points to whole-food greens, which is AG1's foundation.
IM8 leads on label transparency and formula completeness. Every ingredient dosage is openly published. It also packs vitamin D3, vitamin K2, MSM, and essential electrolytes directly into a single scoop.
AG1 leads on published clinical evidence. The formulation is backed by two randomized controlled trials conducted directly on the finished product.
The scientific foundation behind IM8 is exceptionally serious. It features a NASDAQ-listed parent company, a named scientific advisory board, and a formal research collaboration with Mayo Clinic.
Count your basket before comparing monthly prices. Consolidating your routine into IM8 often works out cheaper if you already purchase vitamin D3, magnesium, or electrolyte supplements separately.
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Helena Park
Beauty and longevity writer tracking skincare, recovery culture, and the data-driven approaches shaping women’s health and modern self-care.
