AG1 is a daily greens powder that packs 75 vitamins, minerals, probiotics, and plant ingredients into one scoop. It was formerly called Athletic Greens. The brand sells it as foundational nutrition with a strong gut health angle.
Our team at Optimal Weight Plan went through the label, the lab data, and the research behind the gut claims. The picture is mixed. Prebiotic fiber and probiotics are real, but the proof for gut results is thin.
This review covers what AG1 is, how it works, the ingredients, the evidence, side effects, and cost. By the end, you'll know whether it earns its price.
What Is AG1 Gut Health Powder?
AG1 is a once-daily greens powder that combines vitamins, minerals, probiotics, prebiotics, mushrooms, and adaptogens in one drink. The company launched it in 2010 as Athletic Greens. The latest version, AG1 Next Gen, arrived in spring 2025.
One scoop weighs about 12 to 13 grams and mixes into 8 to 12 ounces (240 to 355 ml) of cold water. A serving has roughly 41 to 50 calories. It is free of gluten, dairy, and artificial sweeteners, and it is NSF Certified for Sport.
Next Gen comes in Original, Berry, Citrus, and Tropical flavors. The brand says it works for vegan, keto, and paleo diets. Here's the key point: AG1 is a supplement, not a medicine, and the FDA does not approve supplements for safety or effectiveness.
How Does AG1 Support Gut Health?
AG1 supports the gut through prebiotic fiber, probiotic strains, and a digestive enzyme blend. Inulin feeds beneficial bacteria. The probiotics add live cultures. Bromelain, a pineapple enzyme, is included to help break down food.
The brand says to take it first thing in the morning on an empty stomach. Healthline's tester found the timing made no real difference. Consistency matters more than the clock, so pick a time you will keep.
Does one scoop fix a bad gut? Not on its own. A scoop carries only about 2 grams of fiber. Adults need 22 to 34 grams a day, so whole foods still do the heavy lifting.
What Is in AG1?
AG1 contains four proprietary blends covering greens, antioxidant extracts, a mushroom and enzyme complex, and probiotics. The brand does not list the exact amount of each ingredient in a blend. That makes it impossible to confirm any single dose.
Main Ingredient Blends:
| Blend | Key Ingredients | Role |
|---|---|---|
| Superfood complex | Spirulina, chlorella, wheat grass, inulin | Greens and prebiotic fiber |
| Extracts and adaptogens | Ashwagandha, rhodiola, CoQ10, milk thistle | Antioxidants and stress support |
| Enzyme and mushroom complex | Bromelain, reishi, shiitake, astragalus | Digestion and immune support |
| Probiotics | L. acidophilus, B. bifidum UABb-10 | Live gut cultures |
The Next Gen formula lists 7.2 billion CFU of dairy-free probiotics from two strains. Older formulas listed five strains. Check your pouch, because the strain count depends on the version you buy.
AG1 skips vitamin D and iron. Anyone low in either needs a separate supplement. That gap surprises many buyers who expect an all-in-one product.
What Are the Benefits of AG1?
AG1 mainly helps fill nutrient gaps and adds a daily dose of probiotics and prebiotic fiber. One serving gives more than 100% of the daily value for vitamins C, E, and all eight B vitamins. Think of it as a multivitamin with a gut add-on.
Main Benefits:
- Fills gaps in vitamins and minerals
- Adds probiotics and inulin for gut support
- Replaces several separate supplements
- Offers third-party NSF Certified for Sport testing
- Suits vegan, gluten-free, and dairy-free diets
Does AG1 Actually Improve Gut Health?
Maybe, but the proof is limited. A 2025 study of 20 active adults found AG1 raised specific beneficial gut bacteria after 12 weeks. Overall microbiome variety did not change. The study was small and run with company partners.
A separate 2025 trial of 120 adults showed better levels of zinc and vitamins A, C, and E after 12 weeks. That is a nutrient result, not a gut result. Healthline notes that no independent study has confirmed AG1's safety or effectiveness.
Does AG1 Help You Lose Weight?
No. AG1 will not change your weight on its own. It is a low calorie drink that supports nutrition. Real weight loss still comes from food choices, movement, and sleep. Our coaches at Optimal Weight Plan treat it as a helper, never a fix.
What Do AG1 Reviews Say?
AG1 reviews are mostly positive, with taste and price as the main complaints. On Walmart, AG1 holds 4.2 out of 5 stars across about 12,300 ratings. 61% give five stars and 7% give one star.
What Do Happy Customers Report?
Fans praise steadier energy, better focus, and an easy morning habit. Healthline's tester said it tasted like matcha, lightly sweet and not bitter. She noticed faster nail growth but no other clear change after a month.
What Are the Common Complaints?
Critics call the taste bitter and the texture gritty. Some report an upset stomach, bloating, or diarrhea. Others say $99 a month is too much for results they could not measure. The same tester doubted it was worth the subscription.
How Does AG1 Compare to Other Greens Powders?
AG1 costs far more per serving than rival greens powders but offers third-party testing and probiotics. Cheaper options exist. Some skip independent testing or probiotics, so the price gap is not a pure markup.
AG1 vs Alternatives:
| Powder | Cost per Serving | Third-Party Tested | Probiotics |
|---|---|---|---|
| AG1 | $2.63-$3.63 | Yes | Yes |
| Primal Harvest | $0.60 | No | Yes |
| Amazing Grass | $0.68 | No | Yes |
| Ora Organic | $1.33 | Yes | No |
| Kaged | $1.99 | Yes, source unclear | No |
A budget powder plus a basic probiotic may cost less. But AG1 saves you from juggling products. Whether that convenience justifies several times the cost is your call.
What Are the Side Effects of AG1?
AG1 can cause an upset stomach, bloating, and diarrhea, especially in the first days. Probiotics and inulin are the likely triggers. Starting with a half scoop and building up over a few days softens the adjustment.
Who Should Avoid AG1?
Some people should skip it or ask a doctor first. The brand itself excludes several groups. Medication interactions are possible because the blends include potent herbs.
Who Should Be Careful:
- Pregnant or breastfeeding women
- Anyone under 18
- People on blood thinners, thyroid, diabetes, or blood pressure medication
- People taking other zinc supplements
- People with autoimmune conditions, because it contains alfalfa
- People with end-stage kidney disease
Is AG1 Safe and Legit?
Mostly yes, with one caution. AG1 is made in an FDA-compliant facility and is NSF Certified for Sport. But Forbes Health ordered independent lab testing and found 1.128 micrograms of lead per serving. California's Prop 65 threshold is 0.5 micrograms.
That does not automatically make it unsafe. It does matter for children and women of childbearing age, who face higher lead risk. Healthline also notes a 2015 California claim about lead levels. Talk with your doctor before starting.
How Much Does AG1 Cost?
AG1 costs $99 for a 30-day pouch, or $79 a month on subscription. That works out to $3.30 per serving one time and $2.63 with a subscription. Shipping adds $9 in the United States.
AG1 Pricing:
| Option | One-Time | Monthly Plan | Double Plan (60 servings) |
|---|---|---|---|
| Pouch (30 servings) | $99 | $79 | $149 |
| Travel packs (30 servings) | $109 | $89 | $169 |
Is AG1 Worth the Price?
It depends. AG1 suits busy people and travelers who struggle to eat enough produce. Registered dietitians quoted by Forbes call it a good backup, not a replacement for a balanced diet. If you already eat well and take a multivitamin, skip it.
Where Can You Buy AG1?
You can buy AG1 on the official website and on Amazon. The official site includes a 90-day money-back guarantee on your first order. Cancel or change a subscription at any time.
Is Optimal Weight Plan Worth It Alongside AG1?
Optimal Weight Plan gives you the food-first structure that no greens powder can replace. Our coaches build plans around real meals, fiber, and habits you can keep. A scoop of AG1 can support that plan, but it can't be the plan.
Don't spend $99 a month hoping a powder fixes your gut or your weight. Start with a coach who looks at your whole day. Book a free call with our coaches today and build something that lasts.
