Comparing AG1 to Ka'Chava is close to comparing a multivitamin to a protein shake. One is a 50-calorie micronutrient supplement, the other a 240-calorie meal replacement with 25g of protein. They overlap on the daily nutrition promise and almost nowhere else. What they do share is the thing that should concern you most: neither will tell you how much of each ingredient you are getting.
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) | Ka'Chava |
|---|---|---|
| What it is | Micronutrient supplement | Meal replacement |
| Score | Not scored, different category | 6.5/10 |
| Price per serving | $2.63 subscription / $3.30 one-time | $4.67 |
| Calories | 50 | 240 |
| Protein | About 2g | 25g |
| Fiber | 2g | 6g |
| Added sugar | Under 1g | 4g (coconut nectar) |
| Folate | L-Methylfolate | Folic acid |
| Vitamin D | Not included | Included, synthetic |
| Magnesium | Chelated | Magnesium oxide |
| Clinical studies | Four completed RCTs | None published |
| Transparency | Proprietary blend, 75 ingredients | Proprietary blend, 85+ ingredients |
They Are Not Really Competitors
AG1 has 50 calories and negligible protein. Ka'Chava has 240 calories and 25g of protein. If you replaced a meal with AG1 you would be eating 50 calories. If you took Ka'Chava as a supplement alongside full meals you would be adding 240.
Decide what you need first. If you eat well and want micronutrient coverage, that is AG1's job. If you need to replace or substantially supplement a meal, that is Ka'Chava's. Comparing their prices directly is not meaningful until you have answered that.
Vitamin Quality: AG1 Is Better, But Not Great
On forms, AG1 is clearly ahead. It uses L-Methylfolate, the bioactive folate, while Ka'Chava uses folic acid, which requires enzymatic conversion that is impaired in roughly 40% of people carrying MTHFR variants. AG1 includes K2 as MK-7 and chelated zinc. Ka'Chava uses magnesium oxide, one of the poorest-absorbing mineral forms available, and zinc oxide.
For a product at $4.67 a serving, the highest price we have recorded in this category, Ka'Chava's across-the-board use of the cheapest available vitamin forms is its single hardest feature to defend.
AG1's own weakness: it does not include Vitamin D at all, selling it separately. Ka'Chava does include it, albeit in synthetic form. A missing essential vitamin is a real gap at any price, and it makes AG1's effective cost higher than the sticker.
The Proprietary Blend Problem: Both Fail
This is the most important section on the page, because it applies to both products equally.
AG1 conceals 75 ingredients behind aggregate blend weights. Ka'Chava conceals 85 or more the same way. In neither case can you determine whether an impressive-sounding ingredient is present at a functional dose or at a trace amount included so it can appear on the label.
Combined, these two products cost over $7 a day, and neither will tell you what you are buying. Long ingredient lists are a marketing asset precisely because they are unverifiable. Both brands lean on that.
In our framework, undisclosed amounts sit near the bottom of the vitamin grading scale, above only nutrients that are entirely absent. That is not a penalty for secrecy; it is an accurate description of what a buyer can know.
Clinical Evidence: AG1 Wins Decisively
AG1 has four completed randomized controlled trials covering gut health markers, nutrient absorption and digestive comfort. Nothing in the greens powder or meal replacement category matches that program, and it is a genuine investment most competitors have not made.
Ka'Chava has no published clinical studies. For a product at $4.67 a serving making broad health claims, that absence is worth noting.
There is a tension in AG1's position worth naming: the trials are on the finished product, which is a legitimate way to run research, but the proprietary blend means you still cannot verify which doses drove the results.
Protein, Fiber and Sugar
Ka'Chava wins on macronutrients because it is the only one competing. 25g of protein and 6g of fiber against roughly 2g of protein and 2g of fiber.
Worth the caveat from our full review: Ka'Chava counts oat milk and coconut milk within its protein blend, and neither is a meaningful protein source. The 25g is accurate but the blend ordering flatters it.
On added sugar, AG1 is under 1g and Ka'Chava has 4g from organic coconut nectar. Coconut nectar is less refined than cane sugar and is still added sugar metabolically.
Value
Ka'Chava at $4.67 is the most expensive product we have audited, and it uses budget vitamin forms throughout. That is the clearest value failure in the category.
AG1 is $2.63 a serving on subscription, or $3.30 as a one-time pouch. That is expensive for a supplement, and the missing Vitamin D means the real figure is higher. What partly justifies it is the clinical research program, which genuinely costs money to run.
Neither is good value on a strict ingredient-quality basis. Ka'Chava is the weaker of the two on that measure.
Who Should Buy Which
Choose AG1 if you eat properly already, you want better vitamin forms, and the clinical evidence base matters to you. Add Vitamin D separately and accept the undisclosed doses.
Choose Ka'Chava if you need meaningful protein and calories in a shake that tastes good and keeps you consistent. Understand you are paying the highest price in the category for the cheapest vitamin forms.
Consider neither if disclosed labelling matters to you. Huel at $2.12 gives you 400 calories, 40g of protein, L-Methylfolate, K2 MK-7, Vitamin D at full DV and every amount published, for less than either.
Frequently Asked Questions
Can I take both AG1 and Ka'Chava?
You can, at roughly $7 a day. There is less micronutrient overlap than you might assume since AG1 has no Vitamin D and Ka'Chava's forms are weaker, but paying twice for two undisclosed blends is hard to justify.
Which is better for weight loss?
Neither is designed for it. Ka'Chava's 25g of protein supports appetite control better than AG1's 2g, but at 4g of added sugar and $4.67 a serving there are stronger options.
Why does Ka'Chava score 6.5 if its vitamins are that poor?
Because vitamin quality is 20% of the score, not all of it. Ka'Chava scores well on macronutrients, has no seed oils, and delivers meaningful protein and fiber. Its vitamin forms and value drag it down from what would otherwise be a stronger result.
Is magnesium oxide really that bad?
Its absorption is substantially lower than citrate or glycinate. It is the cheapest magnesium available and appears frequently in products competing on price, which makes its use in a $4.67 shake conspicuous.
Does AG1 actually improve gut health?
Its published trials report improvements in microbiome diversity and digestive comfort. That is real evidence and more than competitors have. Whether it justifies the price against eating more fiber and fermented food is a personal call.
Bottom Line
AG1 has the better vitamin forms and by far the stronger clinical evidence. Ka'Chava has the macronutrients and the taste. Both hide their doses behind proprietary blends, and between them that is the more important finding than the head-to-head.
If you want a meal replacement with disclosed amounts and better vitamin forms than either, Huel Black Edition costs less than both and publishes everything. If you want a greens supplement, AG1 is the researched option, and budget for the Vitamin D it leaves out.
Read the full Ka'Chava review · Read the full Huel review
