Huel vs Soylent: Two Complete-Meal Shakes, Panel to Panel

Huel and Soylent are the two names that defined the complete-meal-shake category, and on the shelf they look interchangeable: a powder you mix into a nutritionally complete meal in a couple of minutes. Read the panels, though, and they are making opposite bets. Huel Black doubles down on protein; Soylent doubles down on price. Which one is right for you comes down to a single question -- is protein the point, or is cost -- and the labels answer it cleanly.

Both deliver a genuinely complete meal, which is the specific reason this category is worth a look when appetite is low: getting a balanced meal's protein and micronutrients into a small volume is a real problem for many people taking GLP-1 medications, and a well-formulated shake is one honest answer to it. Standard note first: this is general nutrition information, not medical advice, and leaning on shakes for a meaningful share of your intake is a plan to make with your clinician.

The label math (per ~400-calorie meal)

Figures are from each published panel. Same calories, same broad micronutrient completeness -- and a completely different macro split underneath.

Protein: the headline gap

This is the whole comparison in one line. Huel Black delivers 40 grams of protein per meal; Soylent delivers 20. That is not a rounding difference -- it is double. If your reason for buying a meal shake is to keep protein up in a small volume, Huel Black is doing twice the work per glass, and the $/20 g column actually favors it despite the higher per-meal price, precisely because it is so protein-dense.

Soylent's 20 grams is a perfectly reasonable amount for a balanced meal; it just is not built to be protein-forward. If you are getting protein from other sources across your day, that may be all you need.

Macros and ingredients

The macro split explains the rest. Huel Black leans lower-carbohydrate and higher-fiber -- around 17 grams of carbs and 7 of fiber -- built from a blend of pea and brown-rice protein, plus flax and MCT. Soylent carries more carbohydrate (around 37 grams) and builds its protein on soy isolate, with algal oil for fats. Neither approach is wrong; they suit different preferences. If you want lower-carb and plant-blend protein, Huel; if soy protein and a more carb-forward meal are fine, Soylent. Our whey vs plant primer covers the protein-source question without the tribalism (both of these are plant-based, but the sources differ).

Completeness and testing

On the thing that makes "meal" a fair word, they tie: both carry a broad spread of around 27 vitamins and minerals, so both genuinely replace a meal's micronutrients rather than just its calories. Neither carries a third-party banned-substance certification -- they are foods with full Nutrition Facts panels, which is how we grade them. Full disclosure on both; no hidden blends.

Price: Soylent's whole argument

Soylent's case is made at the register. At around $1.82 a meal it is meaningfully cheaper per meal than Huel Black's $2.65 to $3.53 -- often close to half. For anyone using shakes as a regular, budget-conscious meal solution and getting protein elsewhere, that per-meal saving adds up fast. Huel counters that on a per-gram-of-protein basis it is actually the better value, which is true; both statements can coexist because they are measuring different things.

The verdict: protein or price

Choose Huel Black Edition if protein is the point -- you want the most protein per meal in the least volume, you prefer a lower-carb, higher-fiber, plant-blend formula, and you are willing to pay a bit more per meal for double the protein. It is the stronger fit for keeping protein up on a small appetite. Check current Huel pricing, and our full Huel Black review reads the entire panel.

Choose Soylent if price and simplicity lead -- you want a genuinely complete meal at the lowest cost per meal, 20 grams of protein is enough because you get more elsewhere, and a more carb-forward, soy-based formula suits you fine.

For the rest of the complete-meal field, see our best meal shakes roundup, and if protein on a small appetite is the specific problem you are solving, the protein on a small appetite guide covers the whole toolkit. Whatever you choose, confirm how it fits your day with your clinician -- especially on an appetite-suppressing medication.

Texture, taste, and mixing (broad consensus)

Labeled as consensus, not our own tasting: Huel Black is widely described as thicker and earthier, with a heartier mouthfeel that some love and some find heavy; Soylent is generally called smoother, thinner, and more neutral, closer to a light dairy-free milk. Mixing-wise, both dissolve best in a shaker with cold liquid and a few minutes to hydrate, and Huel's higher fiber makes it thicken more as it sits, so people who prep ahead often add extra liquid. If texture is a potential dealbreaker, it is worth buying a single bag before committing to a subscription of either.

How people actually use each

The usage patterns follow the panels. Huel Black tends to replace a specific meal where protein is the priority -- a breakfast or a working lunch you would otherwise skip or under-build -- which is a common pattern for people keeping protein up on a small appetite. Soylent tends to serve as a cheap, complete, no-thought meal for busy stretches where cost and convenience matter more than maxing protein. Plenty of people keep both: Huel for the protein-forward meal, Soylent for the budget filler. Neither is meant to replace every meal, every day.

The subscription math, and what neither is

Both sell primarily by subscription, which is where the quoted per-meal prices come from; one-off purchases cost more, so factor the subscription into any comparison. And a plain caveat on both: a complete-meal shake is a convenient way to get balanced nutrition in a small volume, not a weight-management product and not a reason to stop eating whole food. When food is easy to eat, food is usually cheaper and more satisfying. These shine specifically when volume or time is the constraint -- and how large a role they should play in your day is a question for your clinician, especially on an appetite-suppressing medication. On availability: Soylent is broadly stocked in US stores and online, while Huel sells mostly direct with some retail, so if buying in a physical store on short notice matters, Soylent has the edge.

The bottom line

If you want it in one sentence: Huel Black is the protein-forward complete meal, and Soylent is the budget complete meal. Decide which of those two words -- protein or budget -- is doing the most work for you, and the choice is essentially made. They are equally complete on micronutrients, so the tie-break really is that simple, and everything else here is preference, texture, and how you like to buy. When in doubt, order a single bag of each rather than committing to a subscription sight unseen.