AG1 and Huel get compared constantly, and the comparison is usually framed wrong. AG1 is a 50-calorie micronutrient supplement you add to your diet. Huel is a 400-calorie meal with 40g of protein that replaces part of your diet. They are not substitutes for each other, and the interesting question is not which is better but which problem you are actually trying to solve. Here is the honest breakdown.
A note on scoring: AG1 is a greens and micronutrient supplement, not a meal replacement, so it does not carry an overall score on our 7-dimension framework. That framework is built to evaluate products intended to replace a meal, and applying it to a 50-calorie supplement would produce a misleading number. What follows compares them on the dimensions where a comparison is genuinely meaningful.
The Quick Comparison
| Category | AG1 (Athletic Greens) | Huel Black Edition |
|---|---|---|
| What it is | Micronutrient supplement | Meal replacement |
| Price per serving | $2.63 subscription / $3.30 one-time | $2.12 |
| Calories | 50 | 400 |
| Protein | About 2g | 40g |
| Fiber | 2g | 7g |
| Folate | L-Methylfolate | L-Methylfolate |
| Vitamin K2 | MK-7 | MK-7 |
| Vitamin D | Not included | Included at 100% DV |
| Clinical studies | Four completed RCTs | Limited published data |
| Transparency | Proprietary blend, 75 ingredients | Full amount disclosure |
| Can it replace a meal? | No | Yes |
What You Are Actually Buying
AG1 provides vitamins, minerals, probiotics and adaptogens in a 50-calorie serving with essentially no macronutrients. You still eat breakfast. It is a supplement that sits on top of your existing diet.
Huel provides 400 calories, 40g of protein, 7g of fiber and a full micronutrient panel. It genuinely replaces a meal on both the macro and micro side.
That distinction governs everything else. If you eat well and want micronutrient insurance, AG1 is built for that. If you are skipping meals or eating badly at lunch, AG1 does not fix it and Huel does.
Vitamin Quality: Closer Than You Would Expect
This is the genuinely interesting part of the comparison, because both products are unusually good here.
Both use L-Methylfolate, the bioactive folate form that bypasses the MTHFR conversion issue affecting roughly 40% of people. Both use Vitamin K2 as MK-7, which has a far longer half-life than K1 and is rare across this category. Both use chelated minerals in some positions.
On vitamin form quality alone, these two are more similar than different, and both are well ahead of the typical product in either category. Most competitors default to folic acid and cyanocobalamin.
The critical divergence is Vitamin D. AG1 does not include it and sells it as a separate add-on. Huel includes it at full DV. Omitting an essential vitamin that most people are short on is a real gap in a product at this price, and it means the true AG1 cost sits above the sticker price once you cover D separately.
Transparency: Huel Wins Clearly
AG1 hides its 75 ingredients behind a proprietary blend, so you cannot verify the dose of any individual component. Its probiotic and adaptogen content may well be meaningful, but you are taking that on trust rather than reading it off a panel.
Huel discloses every amount. You can independently confirm that each nutrient hits a research-backed dose because nothing is concealed. In our framework, transparency carries 15% of the score, and this is the dimension where the two products separate most sharply.
Clinical Evidence: AG1 Wins Clearly
AG1 has four completed randomized controlled trials, which is the strongest clinical program in the supplement category by a wide margin. Published work covers gut microbiome diversity, nutrient absorption and digestive comfort. Very few supplement companies invest in research at that level and it is a legitimate differentiator.
Huel has limited published clinical data. What it offers instead is verifiability: you can check the doses yourself against existing research because the label is fully disclosed.
These are two different routes to credibility. AG1 says trust our trials. Huel says check our label. Which you weight more is a reasonable judgment call, and AG1's evidence base is real.
Protein and Fiber
Not really a contest, because AG1 is not attempting it. Huel provides 40g of protein and 7g of fiber. AG1 provides roughly 2g of protein and 2g of fiber.
Worth stating plainly because AG1's marketing around complete daily nutrition can leave the impression that it covers more ground than it does. It covers micronutrients. Protein, fiber and energy are your responsibility.
The Real Cost Comparison
AG1 is $2.63 a serving on a 30-day subscription, or $3.30 if you buy a pouch outright. Most buyers subscribe, so $2.63 is the fair number to use. Huel is $2.12.
On subscription pricing that is a 24% premium, which is a much smaller gap than the one-time prices suggest. But the per-serving figures still are not comparable. $2.12 of Huel is a complete meal. $2.63 of AG1 is a supplement you take alongside a meal you still have to buy and prepare. The honest comparison is $2.63 plus breakfast against $2.12 total, and adding a separate Vitamin D supplement widens it further.
That is not an argument that AG1 is overpriced for what it is. It is an argument that these products are not interchangeable and the per-serving numbers should not be read side by side.
Can You Use Both?
You can, and some people do, but there is meaningful overlap. Both provide L-Methylfolate, K2 MK-7 and a broad micronutrient panel. Running both means paying twice for a substantially similar vitamin stack, at over $5 a day combined.
If you want both a complete meal and AG1's probiotic and adaptogen content, that is a coherent reason. If you are stacking them for micronutrient coverage, you are largely duplicating.
Who Should Buy Which
Choose AG1 if you already eat well, you want the strongest clinical evidence base in the supplement category, and you value the probiotic and adaptogen content specifically. Budget for a separate Vitamin D supplement and accept that you cannot verify individual doses.
Choose Huel if you need to actually replace meals, you want 40g of protein and 7g of fiber, you want to read exactly what you are getting, and you want to spend less. It also covers the same premium folate and K2 forms AG1 does.
Frequently Asked Questions
Is AG1 a meal replacement?
No. At 50 calories with about 2g of protein it is a micronutrient supplement. It is not designed to replace a meal and should not be used as one.
Why does AG1 not include Vitamin D?
It is sold as a separate add-on product. Whatever the formulation reasoning, the practical effect is that a daily serving leaves a common deficiency uncovered unless you buy more.
Does AG1's clinical research make it worth the price?
Four completed RCTs is genuinely more than almost any competitor has, and that deserves credit. Weigh it against the fact that the proprietary blend means you cannot verify what dose produced those results in your own tub.
Could I take Huel and skip AG1 entirely?
For micronutrient coverage, largely yes. Huel provides the same premium folate and K2 forms plus Vitamin D, with disclosed amounts, at a lower price. What you would not get is the probiotic and adaptogen content.
What are adaptogens and do they do anything?
Adaptogens are plant compounds such as ashwagandha and rhodiola claimed to help the body handle stress. Evidence is mixed and dose-dependent, which is precisely why the undisclosed amounts in a proprietary blend matter.
Bottom Line
These solve different problems, so the answer depends on your problem. If your diet has gaps in meals, Huel Black Edition at $2.12 fixes that with 40g of protein, 7g of fiber, full disclosure and the same premium folate and K2 forms AG1 uses, plus the Vitamin D that AG1 leaves out.
If your diet is already solid and you want a researched micronutrient supplement with probiotics and adaptogens, AG1 has the clinical program to back it. Just add Vitamin D separately, and be clear that the proprietary blend means trusting the brand rather than reading the label.
