AG1 (formerly Athletic Greens) is a daily powdered supplement combining 75 vitamins, minerals, probiotics, and adaptogens in one scoop. Founded in 2010, it targets health-conscious adults looking to consolidate multiple supplements into a single daily habit.

AG1 has 4 clinical trials showing it closes nutrient gaps and supports gut health. 80% of trial participants felt digestion improve within 2 weeks, and 85% reported more energy by day 30. It’s NSF Certified for Sport, endorsed by Dr. Andrew Huberman, and holds a 4.5-star average from 50,000+ verified reviews. The formula replaces a multivitamin, probiotics, greens powder, and immune support at $2.97 per serving on subscription.

But AG1 isn’t the right fit for everyone. It lacks iron and vitamin D, costs twice the average greens powder, and some users report digestive discomfort in the first weeks. This review covers ingredients, clinical evidence, side effects, and whether the price is justified for your situation.

What Is AG1?

AG1 is a daily powdered health drink combining 75 vitamins, minerals, probiotics, adaptogens, and whole-food sourced ingredients into one 12g scoop. The product was formerly known as Athletic Greens. It functions as a comprehensive nutritional foundation for energy, digestion, immune defense, and overall health.

Chris Ashenden founded Athletic Greens in 2010 in New Zealand after his own health struggles. The Scientific Advisory Board includes Dr. Andrew Huberman and Dr. Peter Attia. The formula has been updated multiple times, with the most recent major overhaul launching in January 2025 as AG1 Next Gen.

AG1 is NSF Certified for Sport and free from GMOs, gluten, dairy, egg, peanuts, artificial sweeteners, and preservatives. It’s paleo-, keto-, and vegan-friendly. The flavor uses natural pineapple core and vanilla bean essence without added sugar.

What Does AG1 Contain?

The AG1 formula includes 75 ingredients across 8 categories: vitamins, minerals, 5 probiotic strains, prebiotics, superfoods, antioxidants, stress adaptogens, and digestive enzymes. Key vitamins hit 100% of daily values for B6, B12, biotin, vitamin C, vitamin E, folate, niacin, riboflavin, thiamin, and zinc.

Here’s the thing — ingredient sourcing is unusually specific. Citrus Bioflavonoids come from Central Valley, California. Pea Protein is sourced from Manitoba, Canada. Vitamin E comes from La Pampa Region, Argentina. Each ingredient is selected for absorption potential, potency, and nutrient density.

One notable limitation: AG1 doesn’t contain iron or vitamin D. Dietitians note these are essential for many users, particularly premenopausal women and individuals in low-sunlight regions. The formula isn’t a protein supplement, meal replacement, or substitute for whole green vegetables.

Key Ingredient Categories:

Vitamins and minerals (100% daily value for 10+ nutrients)
5 clinically-studied probiotic strains
Prebiotics for enhanced bioavailability
Stress adaptogens and botanical extracts
Superfoods, antioxidants, and digestive enzymes
Pea protein for digestive comfort

What Products Does AG1 Replace?

AG1 is positioned as a replacement for a daily multivitamin, prebiotics and probiotics, greens superfood powder, and immune support supplements combined. Buying those products individually can cost over $200 per month, according to the company.

AG1 doesn’t replace a dedicated protein supplement, meal replacement shake, or fresh green juice. It complements a healthy diet rather than substituting it. One scoop provides 12 grams of powder — not enough calories to skip a meal.

How Does AG1 Work?

AG1 works through a bioavailable powder form that allows the body to absorb nutrients rapidly, with ingredients intentionally paired for biochemical synergy rather than isolated delivery. Vitamin C, Vitamin E, and Alpha lipoic acid are combined to work cohesively. This pairing strategy is distinct from standard multivitamin tablets.

Bottom line: the benefits compound. At 30 days — better digestion, bowel regularity, fewer cravings, and sustained energy. At 60 days — daily foundational support. At 90 days — full health optimization. The company emphasizes consistent daily use over perfect timing.

For best absorption, take AG1 first thing on an empty stomach. The product contains live bacterial cultures, so refrigeration after opening is required. It can be mixed into 8-10 oz (240-296 ml) of cold water or blended into a smoothie with banana, berries, and avocado.

How to Use AG1 Daily:

Add one scoop to 8-10 oz (240-296 ml) of cold, non-acidic water

Shake for 60 seconds using a shaker bottle
Drink first thing in the morning on an empty stomach
Refrigerate the pouch after opening to preserve live cultures
Take consistently every day — timing matters less than daily habit

Does AG1 Fill Nutrient Gaps?

Yes. AG1 Next Gen is backed by 4 gold-standard clinical trials consistently showing it helps fill common nutrient gaps across diverse populations, lifestyles, and study designs. The trials were conducted across healthy adults of varying ages and dietary habits.

In fact, AG1 contains 467% of the daily recommended vitamin C value and 1,100% of vitamin B7. Both are water-soluble vitamins. Excess amounts above what the body uses are excreted in urine rather than accumulating to toxic levels.

A 3-month single-arm study of 104 healthy adults (ages 25-59) assessed self-perceived efficacy of AG1. 80% felt digestion improved after 2 weeks. 85% felt more energy after 30 days. Independent reviewers note that company-affiliated researchers conducted some of these trials — worth keeping in mind.

How Does AG1 Support Gut Health?

AG1 supports gut health through a combination of 5 clinically-studied probiotic strains paired with prebiotics that enhance bioavailability and optimize how the body receives nutrition. This dual-action approach is a core differentiator versus standalone probiotic supplements.

The 5 probiotic strains are non-dairy and produced through fermentation, not of animal or soil origin. Live cultures require refrigeration after opening to maintain potency. Pea protein is included to optimize digestive comfort during transit.

And here’s what the data shows: the 3-month study found 80% of participants reported improved digestion within 2 weeks. Jason L. puts it plainly: ‘The days I forget to drink it, I feel sluggish.’ Cory Bourrier: ‘Gut health is majorly improved, mood has been great, skin feels better.’

What Are the Benefits of AG1?

AG1 claims benefits across five core areas: energy and focus, gut health and digestion, immune defense, mood balance, and general foundational nutrition for whole-body health. The company positions these as compounding outcomes built through daily consistency rather than immediate results.

50,000+ verified 5-star reviews cite increased energy, improved digestion, better post-exercise recovery, and skin improvements as the most frequent positive outcomes. AG1 surveyed 2,618 customers at the 12-day mark. The results align with clinical trial findings on energy and gut health.

The formula includes adaptogens — botanicals traditionally associated with stress resilience. Here is the part most people miss: independent scientific reviewers note that robust human clinical evidence for adaptogens remains limited. The benefits are supportive, not therapeutic.

AG1 Claimed Benefits:

Increased daily energy and focus (85% of trial participants after 30 days)

Improved gut health and digestion (80% after 2 weeks)
Immune defense support via vitamin C, zinc, and probiotics
Mood balance through adaptogens and B-vitamin complex
Foundational nutrition: replaces multivitamin, probiotic, greens, and immune support

Does AG1 Boost Energy and Focus?

Yes. In a 3-month company study, 85% of 104 healthy adult participants reported feeling more energy after 30 days of daily AG1 use. Dr. Andrew Huberman has taken AG1 since 2012 as ‘the simplest way to get my bases of important vitamins, minerals, and probiotics.’

Here’s why: AG1 contains 100% daily value of five B vitamins — B6, B12, riboflavin, thiamin, and niacin. B vitamins play a direct role in cellular energy metabolism and neurological function. The energy support mechanism is consistent with established B-vitamin science.

Customer testimonials reinforce the energy theme. Todd G.: ‘I’ve got lots of energy!’ Hari Budha Magar: ‘It’s just great to give me energy and balance my gut health.’ Jason L.: ‘The days I forget to drink it, I feel sluggish.’ The pattern holds across elite athletes and everyday users alike.

Does AG1 Support Immunity?

Yes. AG1 contains 467% of the daily recommended value of vitamin C, alongside 100% daily values of vitamin E, zinc, and folate — four nutrients with established roles in immune function. These are combined with the probiotic blend, which further supports mucosal immunity.

Registered dietitian Isabella Swiecicki-Allen confirms AG1 is third-party tested and NSF-certified for quality. ‘Not all greens powders are created equal — quality and testing matter,’ she notes. The NSF certification independently verifies purity and ingredient accuracy.

AG1 is marketed as a replacement for standalone immune support supplements. The company classifies immune defense as one of its four primary benefit pillars alongside energy, gut health, and mood balance.

Does AG1 Actually Work?

AG1 has clinical evidence supporting its efficacy in closing nutrient gaps and improving self-reported gut health and energy, but independent long-term research is still limited relative to its ingredient complexity. Four clinical trials exist, with some conducted by AG1-affiliated researchers.

To be clear: Cleveland Clinic (2024) stated there is ‘insufficient research to determine the actual safety and effectiveness of AG1.’ Catherine Rall, RDN, notes that 75+ combined ingredients make isolating individual effects difficult for researchers. These are legitimate limitations, not dealbreakers.

The honest position: AG1 works for what it claims within the scope of its trials. It closes nutrient gaps and improves self-reported digestion and energy. Whether all 75 ingredients provide additive benefit versus a simpler multivitamin remains an open scientific question.

Does AG1 Help With Weight Loss?

No. AG1 is not clinically studied or marketed for weight loss and doesn’t provide enough calories to replace meals or function as a fat-loss supplement. Weight management isn’t among its four stated benefit pillars.

An indirect connection exists through gut health. Dietitian Jessie Shafer noted that probiotics and nutrients in AG1 ‘could be beneficial’ when combined with daily movement and improved nutrition. Better gut health may support metabolic function. But this is a supporting pathway, not AG1’s primary claim.

Customer Jan asked the company directly about weight loss. The response focused on energy improvements and the importance of combining consistent nutrition with daily movement. AG1 is positioned as a nutritional foundation, not a transformation tool.

What Do Clinical Trials Say About AG1?

AG1’s 3-month trial on 104 healthy adults (ages 25-59) found 80% reported improved digestion within 2 weeks and 85% reported more energy by day 30 — both statistically notable self-reported outcomes from a single-arm interventional study.

The trial design was a single-arm study measuring self-perceived efficacy, not a randomized controlled trial. High-quality supplement research typically involves thousands of blinded participants over multiple years. This is an acknowledged limitation in AG1’s evidence base.

NSF Certified for Sport provides independent quality validation recognized by USADA, MLB, and the NHL. It tests for 280+ banned substances and 500+ pesticides including glyphosate. This certification verifies purity and ingredient accuracy, not therapeutic efficacy claims.

AG1 Clinical Evidence Summary:

Study Aspect	Details
Total clinical trials	4 (some AG1-affiliated)
Largest trial	104 adults, 3 months, self-reported outcomes
Digestion improvement	80% of participants after 2 weeks
Energy improvement	85% of participants after 30 days
Trial type	Single-arm interventional (no control group)
Third-party certification	NSF Certified for Sport (USADA-recognized)

What Do AG1 Reviews Say?

AG1 holds a 4.5/5 star average on its own website with 50,000+ verified reviews and 4.1/5 based on 2,200+ Amazon reviews — a consistent pattern across multiple independent platforms. Trustpilot shows 2,189 reviews with a 96% reply rate to negative feedback.

The GGR expert testing team gave AG1 Next Gen 4.5 stars. Testers praised taste, solubility (‘best of all greens powders tried’), and the ingredient profile. The only prohibitive factor raised repeatedly was cost relative to competing greens powders.

Review themes are consistent across sources. Positive reviews focus on energy, digestion, convenience, and taste. Negative reviews focus on high price, occasional digestive upset when starting, and subscription management complexity.

What Are the Positive AG1 Experiences?

Positive AG1 reviews consistently cluster around three themes: increased energy, improved digestion, and convenience as a single-supplement routine. Gut health and mood improvements appear as secondary themes in longer-term users at the 3-month mark and beyond.

High-profile endorsements reinforce consumer confidence. Dr. Andrew Huberman has used AG1 since 2012. Allyson Felix noticed ‘a big shift in energy and recovery.’ Sir Lewis Hamilton: ‘I’ve been drinking AG1 every single day for a few years and it’s become a key part of my routine.’ These aren’t just paid partnerships — they describe daily rituals.

Taste receives specific praise. Ashley C.: ‘I have tried a lot of different types of greens and this is the best brand.’ The GGR tester rated AG1 Next Gen the highest for solubility among all powders tested. The pineapple-vanilla profile avoids the earthy taste common in competitor powders.

What Are the Common AG1 Complaints?

The most frequent AG1 complaint is cost: at $3 per serving, AG1 is the most expensive greens powder tested by GGR, compared to the average competitor price of $1.50 per serving. Users who take it solo report clear satisfaction. Users comparing value to cheaper alternatives question the premium.

Digestive side effects appear in a subset of new users. Clinical data confirm some people experience nausea, bloating, diarrhea, or stomach upset when first starting or when combining AG1 with other supplements. These effects are typically mild and self-resolving within the first 1-2 weeks.

Scientific skeptics raise a more fundamental concern. McGill’s Office for Science and Society describes AG1 as ‘essentially an overpriced mega-multivitamin with bells and whistles most people don’t need.’ Cleveland Clinic (2024) recommends dietary adjustments as a more evidence-based approach. These critiques target marketing claims rather than ingredient safety.

AG1 vs Supergreen Tonik: Which Is Better?

AG1 outperforms Supergreen Tonik in ingredient count (75 vs 38 active ingredients), third-party certification, and clinical trial backing — but costs approximately $0.70 more per serving at standard subscription pricing. Both are premium greens powders competing in the same category.

On formulation, AG1 Next Gen earned a perfect 5/5 score from both GGR product testers and registered dietitian Bob Iafelice. No other greens powder in GGR’s review of 40+ products matched this score. Supergreen Tonik has a strong amino acid profile but lacks AG1’s clinical trial history.

AG1 holds NSF Certified for Sport designation, recognized by USADA, MLB, and NHL. Most competing greens powders, including Supergreen Tonik, lack this independent certification. For athletes subject to drug testing, this distinction is material.

On taste and mixability, AG1 scores higher than most competitors. GGR testers rated AG1 the top scorer on solubility. Supergreen Tonik has a more herbal, earthy taste versus AG1’s subtly sweet pineapple-vanilla profile — that’s a preference-based difference, not a quality one.

AG1 vs Supergreen Tonik Comparison:

Feature	AG1	Supergreen Tonik
Active ingredients	75	38
Price per serving	$2.97 (subscription)	$2.30
NSF Certified for Sport	Yes	No
Clinical trials	4	0
Probiotic strains	5	0
Taste profile	Pineapple-vanilla (sweet)	Herbal, earthy

What Are the Side Effects of AG1?

AG1 is generally safe for healthy adults based on clinical data, but a subset of new users reports nausea, bloating, diarrhea, or stomach upset, particularly in the first 1-2 weeks or when stacking AG1 with other supplements. These effects are typically mild and self-resolving.

The formula contains 467% of the daily vitamin C value and 1,100% of vitamin B7. Both are water-soluble vitamins. Excess amounts are excreted in urine rather than accumulating to harmful levels. The formula doesn’t contain iron or vitamin D — a noted limitation for some users, but also a risk-reduction feature.

Dietitian Catherine Rall, RDN confirms that ‘NSF Certified for Sport goes a long way towards verifying quality and safety’ for a supplement with this many ingredients. That independent certification is what separates AG1 from the many unverified greens powders on the market.

AG1 Side Effects to Know:

Nausea or stomach upset when first starting (typically transient)
Bloating or digestive discomfort, especially when stacking with other supplements
Diarrhea in sensitive individuals during initial weeks
No iron or vitamin D included (limitation, not a side effect)

No serious adverse events reported in clinical data

How Much Does AG1 Cost?

AG1 costs $89 per month on a single subscription (30 servings at $2.97 per serving), $169 for a double subscription, and $253.50 for a family subscription of 3 pouches per month. A one-time purchase without subscription is $109 per pouch.

The company frames this against the cost of individual supplements. A multivitamin, probiotic, greens powder, and immune supplement purchased separately at premium quality can exceed $200 per month. AG1 consolidates these into one product at less than $3 per day on subscription.

New subscribers receive the AG1 Welcome Kit with free gifts: travel packs and a shaker bottle. All subscriptions include a 90-day money-back guarantee. The subscription can be updated or cancelled at any time according to the company’s terms.

Is AG1 Worth the Price?

AG1 is the most expensive greens powder on the market at $2.97 per serving versus the average competitor price of $1.50 per serving — but the gap narrows significantly for users who would otherwise purchase multiple separate supplements.

For single-supplement buyers, the premium is hard to justify. For users replacing a multivitamin, probiotic, greens powder, and immune support product simultaneously, the math shifts. Buying those four categories at equivalent quality could easily exceed $120-200 per month.

GGR advises managing the subscription carefully. Double or triple subscriptions lower the per-serving cost but create stockpile risk. Users should modify delivery dates if 60-90 servings per month exceeds household consumption to avoid waste.

AG1 Pricing Breakdown:

Option	Price	Servings	Per Serving
Single Subscription	$89/month	30	$2.97
Double Subscription	$169/month	60	$2.82
Family Subscription	$253.50/month	90	$2.82
One-Time Purchase	$109	30	$3.63
Average Competitor	$45/month	30	$1.50

Is AG1 Legit?

Yes. AG1 is a legitimate supplement backed by NSF Certified for Sport, 4 clinical trials, 50,000+ verified reviews, and a 14-year market track record with transparent sourcing and third-party testing for 500+ contaminants. It is not a scam.

NSF Certified for Sport is recognized by USADA, MLB, and the NHL. The certification tests for 280+ banned substances including stimulants, narcotics, diuretics, and masking agents. AG1 also tests for 500+ pesticides and herbicides including glyphosate. This level of independent verification exceeds most competitors.

Short answer: the company responds to 96% of negative Trustpilot reviews. The Scientific Advisory Board includes named, credentialed researchers. No dietary supplement is FDA-regulated, but the NSF certification and clinical trial record position AG1 as one of the most rigorously validated greens powders available.

Why Should You Try Eat Proteins?

AG1 is a solid product. But here’s the thing — a supplement is only worth it if it fits your actual goals. Our team at Eat Proteins cuts through the marketing and gives you honest, evidence-based guidance on what actually works for your specific situation. AG1 won’t replace a well-structured protein intake plan, and for most people focused on body composition, protein optimization matters far more than a greens powder.

Our coaches at Eat Proteins work with real people navigating the same questions you’re asking right now. Is AG1 worth it for you? Do you need a greens powder at all, or would targeted supplementation serve you better? These aren’t questions a subscription model can answer. But we can. You deserve a plan built around your goals — not someone else’s marketing budget.

Ready to stop guessing and start making real progress? Eat Proteins delivers expert protein and nutrition guidance without the premium price tag. Join us today and build the foundation that actually moves the needle.

AG1 Review: Is This Greens Powder Worth the Hype?