
A sourced comparison of AG1 and Huel Daily Greens, with five yardsticks for judging any daily supplement.
If you have searched for this comparison, the first useful-looking result is probably Huel's own page, which announces that Daily Greens is "more nutritionally complete" than AG1 because it lists more nutrients. Its own footnote dates those figures to January 2024 and checks them against an AG1 label from 2022. We make AG1, and we felt it was time to give you a more realistic comparison. Rather than asking you to trust either brand, this guide sets out what actually separates products in this category, shows its sources throughout, and is upfront about where Huel genuinely is the better fit.
On paper the two look alike: both are a powder a day, built on vitamins, minerals, botanicals and bacterial cultures, and both are sold on subscription. Comparing them by colour alone is a superficial test, though: "greens" does not tell AG1's full story, nor Huel's. Beyond the label, they come from very different places.
Huel's core business is meal replacement: powdered and ready-to-drink meal options for people who want quick and easy nutrition. Daily Greens, launched in 2023, extends that logic into the greens category and inherits the family traits: plant-based, convenient, built around covering as many nutrients as possible per serving.
AG1 is a single scoop of foundational nutrition, reworked continuously since 2010 around a different question: not "how many nutrients can we list?" but "what does the body actually absorb and use, every day, from one serving?" It pairs bioavailable nutrient forms with bacterial cultures and digestive support,3 and the finished formula itself has been put through clinical trials.a-d And what happens when someone takes it consistently? In the trials, key nutrient levels improved within 3 months.a
Neither philosophy is dishonest, but they ask different questions. Huel plays the numbers game: 91 nutrients against 75. AG1 plays the efficacy game: how useful is each ingredient, how does it affect the people taking it, and how do we make the best possible product? The "91 beats 75" framing answers only the first question.
Before putting the two side by side, it is worth agreeing on the yardsticks, because the front of a pouch rarely mentions any of them.
Whether the finished formula has been studied. Ingredient research is everywhere; trials of the complete product are rare. They matter, because the ingredients in one serving interact, for better or worse.
The forms the nutrients come in. Your body takes up some versions of a vitamin or mineral readily and lets others pass straight through. Two labels both listing vitamin B12 can mean two different forms, and two different outcomes.
How each ingredient is dosed. The dosing philosophy matters: is the formula designed to complement and live alongside your routine, or built on piling doses high and calling it "potent"? Trace amounts stretch a list without pulling their weight, and very high doses are no virtue either, least of all for fat-soluble vitamins, which accumulate in the body.
Who checks the label. Independent programmes such as Informed Sport and the Cologne List® screen batches for banned substances and confirm the contents match the packaging. That proves honesty rather than effects, and honesty comes first.
Whether it survives your routine. Taste, texture and cost decide if a supplement is still in use come month three. One that sits unopened in the cupboard does nothing.
With those five yardsticks, the comparison is quick.
What people compare | AG1 | Huel Daily Greens | How to read this |
|---|---|---|---|
Ingredients | 70+ vitamins, minerals and whole-food-sourced ingredients | 91 nutrients (Huel's marketing count) | The count is the whole basis of Huel's comparison page, and it is the wrong test. Quality beats quantity: what matters is the type and dose of each ingredient, and whether it earns its place in the formula. |
Serving size | 13 g per scoop | 8.5 g per serving | A larger 13 g scoop leaves room for a bigger punch where it counts: 2.5 g of fibre against 1.0 g, and 10 billion CFU against around 150 million. Fitting 91 entries into 8.5 g tells you the length of the list, not how much of each you get. |
Studies on the finished product | Four published clinical trials: randomised, placebo-controlled, blindeda-d | None on Daily Greens; Huel's one registered trial tested Huel Powder, a different product | Whole-formula trials are the strongest evidence a supplement can offer. In this comparison, only one product has them. |
Bacterial cultures | 10 billion CFU from five well-researched strains, each declared individually, including LGG | Around 150 million CFU from two strains | Gut support is the main job most people hire a greens drink for. AG1 delivers roughly 60 times the declared culture count, from strains whose microbiome effects were examined in the published trials.a-c |
Fibre | 2.5 g from nine plant sources listed on the label, including inulin from chicory root, apple and artichoke | 1.0 g | Fibre is microbiome food. Fibre from different sources nourishes different gut bacteria, which is the thinking behind the popular 30-plants-a-week rule, so the mix matters as much as the grams. |
Vitamin D | Separate D3+K2 drops, dosed to your needs | 46 µg (920% of the reference intake) fixed in the powder, every day | The NHS suggests UK adults consider vitamin D in autumn and winter because needs shift through the year. Drops can follow that rhythm; a fixed amount in the powder stays the same all twelve months. |
Certification | Every European batch certified by Informed Sport and the Cologne List®; NSF Certified for Sport® in the US | No independent batch certification published for Daily Greens (Huel's Informed Sport listing covers a different product, Huel Professional) | Batch certification answers one question: does the pouch contain exactly what the label says, and nothing banned? It is the baseline to check before any marketing claim. |
Years on market | Since 2010, continuously iterated, and we are still iterating | Since 2023, as a line extension | Specialists and generalists formulate differently. A formula refined over more than 15 years is a different proposition from a 2023 line extension, however competent the parent company. |
Price per serving | £2.63 (£79 for 30 servings, subscription; 13g daily serving) | £1.50 (£45 for 30 servings, subscription; 8.5g daily serving) | Huel wins on price, plainly. The question is what you value: a longer ingredient count including fillers like tapioca starch, or a thoughtfully formulated product that has stood the test of time, been studied by scientists and been independently tested? |
Sweetener and taste | Steviol glycosides from stevia leaf; notes of vanilla and pineapple, mixes smoothly | Steviol glycosides | You only benefit from the one you keep drinking. AG1's signature flavour was built for daily repetition.* |
Labels list contents. They stay silent on the questions that decide value: has the complete formula been tested, do its nutrients arrive where they should, and what changed in the people who took it? On those questions, AG1 and Daily Greens part ways quickly.
Huel's central claim is arithmetic: Daily Greens lists more nutrients than AG1, therefore it is more complete. If nutrition worked like a stamp collection, that would settle it.
Nutrition does not work that way, for three reasons. First, form matters: nutrients come in versions your body absorbs well and versions it mostly waves through, and a count cannot tell you which is in the scoop. Second, dose matters, in both directions: a nutrient at a trace level pads the count without doing much, and more is not automatically better for micronutrients you already get from food. Third, a greens powder is not your diet. You eat all day. The useful question is whether the formula reliably covers common gaps and supports the systems, above all your gut, that shape how you feel daily.
What the finished formula has been shown to do is the better measure: AG1 helps improve key nutrient levels within 3 months,a and key nutrients in AG1 were shown to be quickly and easily absorbed into the body.d
A note on dates: the figures on Huel's comparison page carry their own footnote dating them to 1 January 2024, checked against an AG1 label accessed in 2022. Formulas and prices on both sides have moved since. Any comparison working from a years-old snapshot deserves a sceptical read, including where it flatters.
Doses
Both products provide broad vitamin and mineral coverage. The difference is the room each ingredient gets: Daily Greens fits its 91 entries into an 8.5 g serving, AG1 gives 70+ ingredients 13 g to work with.
AG1 deliberately does not chase big numbers. The formula is designed to complement what you already eat rather than pile doses high and call it potent, with restraint where restraint is wise: fat-soluble vitamins and trace minerals sit at considered levels precisely because the body holds on to what it cannot easily excrete. Daily Greens fixes vitamin D at 46 µg, 920% of the reference intake, in every serving. Neither approach is automatically right for you: needs shift with season, diet and sun exposure, and only one of the two can follow them.
The "Missing Vitamins" Argument
Huel's page says AG1 lacks vitamin D and vitamin K, then concedes in the same breath that AG1 provides both as a D3+K2 liquid included with first orders. AG1 leaves vitamin D out on purpose. How much vitamin D a person needs depends on the season, their diet, their sun exposure and their age, which is exactly why the NHS suggests UK adults consider it in autumn and winter. A separate dropper lets you dose deliberately rather than accepting whatever amount is baked into a scoop.
As for iron: including it in a daily all-in-one is a trade-off, not free completeness. Iron competes with other minerals for absorption, and a blind daily top-up is not appropriate for many adults. Reasonable formulators land on different answers here, so "we included it and they did not" describes a difference in philosophy rather than a gap.
Bacterial Cultures
This is where the two products differ most, and it is the part Huel's comparison page does not discuss.
AG1 includes five well-researched Lactobacillus and Bifidobacterium strains, delivering 10 billion CFU per serving, with the amount of each strain declared individually:
Listing strains is one thing; showing they arrive is another. A culture that does not survive stomach acid and the passage through the digestive tract never gets the chance to join the gut microbiome, so survival is the entry ticket. In clinical trials, the cultures in AG1 were shown to complete that journey alive, and AG1 is clinically shown to enrich the gut microbiome by 10x on average.a-c
Daily Greens declares two strains totalling around 150 million CFU per serving. That is roughly one sixtieth of AG1's declared count, and there is no published research on what the finished Daily Greens formula does in the gut. For a category whose main job is daily digestive support, that difference belongs at the centre of the comparison, not in the footnotes.
If "scientific" is to mean anything in this category, it has to mean tested, and this is where AG1's case is strongest.
AG1 has been studied in four clinical trials: randomised, placebo-controlled and blinded, with published results covering nutrient levels, the gut microbiome and the absorption of key nutrients.a-d
Huel has run one registered clinical trial, and it tested Huel Powder, the meal replacement, not Daily Greens. For the greens product itself, Huel's formula page cites research on individual ingredients. Ingredient studies are a starting point, but they are not product studies: ingredients interact, and only a trial of the finished formula shows what the product you actually drink does.
Self-funded research is the norm across this industry, on both sides of this page. What varies is how much of it exists on the product actually being compared, and here the published record is one-sided.
In Europe, every AG1 batch goes through Informed Sport and the Cologne List®, the two programmes European athletes consult; in the US, AG1 is NSF Certified for Sport®. Together they screen for banned substances, contaminants and heavy metals, and confirm that what the label declares is what the pouch contains.
Huel Daily Greens carries no independent batch certification that we could find published: the Informed Sport database lists Huel Professional, a different product, and Huel's quality page describes internal and ingredient-level testing. Daily Greens does carry Vegan Society and Coeliac Society marks, which certify what they certify, but not label accuracy or banned-substance screening.
What a certificate proves is narrow but essential: the label tells the truth and the batch is clean. Everything else a brand claims has to build on that, which is why it is the level worth comparing at.
Nothing in a supplement works unless you take it tomorrow as well, which is why taste and price count as much as anything in the table above. Customers are regularly surprised by how good AG1 tastes, and that is what makes it an easy habit to stick to.*
On price, Huel wins, and we will not pretend otherwise. Daily Greens costs £1.50 per serving on subscription (£45 for 30 servings) against AG1's £2.63 (£79 for 30 servings). If price alone decides, that line settles it.
What the difference buys is the substance of this article: 10 billion CFU from five declared strains instead of around 150 million from two, 2.5 g of fibre from nine sources instead of 1.0 g, four published clinical trials on the finished formula instead of none, and every European batch independently certified. A lighter formula at a lighter price is an honest trade.
Both first orders come with extras. AG1's includes the Welcome Kit with a shaker, scoop and stainless steel canister, plus a bottle of D3+K2 drops and Travel Packs, and every AG1 subscription comes with a 30-day money-back guarantee.**
Daily Greens suits buyers for whom price and convenience come first, who want a plant-based nutrient top-up from a brand they may already order meals from, and for whom gut support is not the main reason they are here.
AG1 suits people who want one foundational daily habit with a substantial, declared dose of bacterial cultures, nutrient forms chosen for absorption, independent batch certification, published research on the actual formula,a-d and more than 15 years of refinement behind it.
Daily Greens is a convenient, lower-priced nutrient top-up from a meal-replacement company, while AG1 is a foundational daily formula that has been studied as a whole. Concretely, AG1 provides 10 billion CFU of bacterial cultures from five individually declared strains against around 150 million from two, 2.5 g of fibre against 1.0 g, four published clinical trials on the finished formula against none, and independent certification of every European batch.a-d Daily Greens counters with a lower price and a longer nutrient count in a smaller serving. Which matters more depends on the job you are hiring the product for.
It can be a reasonable, convenient top-up. Daily Greens covers all 26 essential vitamins and minerals in an 8.5 g serving at a lower price, from a company with a solid reputation in meal replacement. What it offers less of is the reason most people take a greens drink daily: its declared bacterial cultures total around 150 million CFU from two strains, its fibre is 1.0 g per serving, and there is no published research on the finished formula. So is it good for you? As a multivitamin-style supplement, plausibly yes. Doing the full job of a daily foundational drink is a higher bar.
Both include bacterial cultures and fibre; the scale differs. AG1 provides 10 billion CFU from five well-researched strains, each declared on the label, shown in clinical trials to survive the gastrointestinal tract, and AG1 is clinically shown to enrich the gut microbiome by 10x on average.a-c It pairs the cultures with 2.5 g of fibre from nine natural sources, and both formulas' micronutrients play a role too: calcium contributes to the normal function of digestive enzymes, and biotin contributes to the maintenance of normal mucous membranes, such as the intestinal lining.3 Daily Greens provides around 150 million CFU from two strains and 1.0 g of fibre.
On the vitamin side the two overlap considerably: both contain vitamins that contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue, and nutrients such as biotin, zinc and chromium that contribute to normal macronutrient metabolism.2 What only one of them brings is evidence on the finished product: key nutrients in AG1 were shown in a clinical trial to be quickly and easily absorbed into the body.d No equivalent published results exist for Daily Greens.
If price is the deciding factor, Huel Daily Greens is cheaper and that is a fair reason to choose it. On the criteria that describe what the product does (bacterial cultures at a meaningful declared dose, fibre variety, whole-formula research, independent batch certification), AG1 is the stronger choice.a-d Whichever way you go, pick the one that will still be part of your morning a year from now; an unused pouch helps nobody.
This comparison is based on publicly available information from AG1 and Huel, including official websites, product and formula pages, certification databases and policy pages available at the time of writing (September 2026), together with AG1's published clinical research. Huel's own AG1 comparison page dates its figures to 1 January 2024; where its claims and current labels diverge, we used the current labels.
a. In a triple-blind, randomised, placebo-controlled parallel-designed clinical trial evaluating nutrient biomarkers and microbiome shifts in 105 healthy adults ages 20-59 over the course of 12 weeks.
b. In a double-blind, randomised, placebo-controlled 2-week cross-over clinical trial assessing microbiome shifts in 20 active adults ages 19-37.
c. In a double-blind, randomised, placebo-controlled 2-week cross-over clinical trial assessing microbiome shifts of 24 healthy adults with occasional GI distress ages 26-59.
d. In a double-blind, randomised, placebo-controlled cross-over clinical trial assessing bioavailability in 16 healthy adults ages 18-42 over the course of 8 hours.
The studies were conducted on a similar version of AG1's continually evolving formulation. The transferability of the study results is ensured because of comparable ingredients and amounts.
Published AG1 research:
Huel product and pricing information (as of September 2026): https://uk.huel.com/products/huel-daily-greens and https://uk.huel.com/pages/the-huel-daily-greens-formula-explained. Huel's AG1 comparison page (figures self-dated 01/01/2024): https://uk.huel.com/pages/athletic-greens-comparison. Huel Powder clinical trial registration: https://clinicaltrials.gov/study/NCT04734938. Informed Sport product database: https://sport.wetestyoutrust.com/supplement-search/huel/huel-professional
NHS. Vitamin D. https://www.nhs.uk/conditions/vitamins-and-minerals/vitamin-d/
AG1 product information: https://drinkag1.com/en-uk/about-ag1/ingredients/ctr
Health Claims
1. Immune system: With vitamins A, C, B6 and B12 as well as folate, zinc, copper and selenium, AG1 contributes to the normal function of the immune system.
2. Energy levels: Vitamins C, B6, B12, riboflavin, niacin, pantothenic acid and magnesium contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue. Biotin, zinc and chromium contribute to normal macronutrient metabolism.
3. Digestion: Calcium contributes to the normal function of digestive enzymes. With vitamin A, biotin, riboflavin and niacin, AG1 contributes to the maintenance of normal mucous membranes (e.g. intestinal mucosa).
4. Cell protection: With vitamins E and C as well as riboflavin, zinc, copper and selenium, AG1 contributes to the protection of cells from oxidative stress.
Disclaimer
Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. Do not exceed the indicated daily intake. Keep out of reach of children. Please inform and consult your doctor before consuming this product. Not suitable for children and adolescents under 18 years, pregnant or breastfeeding women. Refrain from taking other food supplements containing zinc. Persons taking anticoagulant medication should seek medical advice before consuming vitamin K-containing supplements.