Precision nutrition

A test hands you a score. A plan hands you a grocery list.

What the four Viome food lists actually say, and why spinach lands on the wrong one for most people.

Updated September 1, 2026 · 11 minute read

Most at-home health tests end the same way. A screen of numbers, a few of them red, and a paragraph telling you to eat more fiber and manage your stress. You paid a few hundred dollars to be told what you already suspected.

The interesting question is the one that starts the morning after. Not what is wrong. What, exactly, goes in the cart on Saturday.

That gap between a result and a decision is the whole argument for a personalized food plan, and it is also the part almost nobody shows you before you buy. So here is the inside of one: the four lists, the rule attached to each, the score that decides which list a food lands on, and what the first thirty days look like when you actually follow it.

01  The four lists

Every food you eat gets sorted into one of four buckets, and each bucket is an instruction

When Viome results land, the food database is not returned as a score. It is returned as four lists. Viome publishes what each one means and how it is meant to be used, and the wording matters, because the difference between a suggestion and a plan is whether there is a number attached.

Read those four rules again as instructions rather than categories. One food per day, single serving. Nothing for six months. That is not a diet philosophy. That is something you can execute on a Tuesday without thinking about it, which is the only kind of nutrition advice that survives contact with a real week.

Food and supplements help your body function and repair itself, but no two people react to all food and supplements the same way. Viome, Understanding Your Viome Food Categories

And the six month clock is not decoration. It is the retest interval. The avoid list is written to expire.

02  How a food gets sorted

Spinach is the clearest case, because for most people it does not end up where you would expect

Take the most photographed vegetable in wellness. Viome ran the numbers on 10,000 of their own customers and looked at where spinach landed on each of their food lists.

Close to 60% were told to avoid or minimize it.

Figures published by Viome in their own analysis of spinach recommendations, viome.com/blog.

The reason is oxalates. Spinach is one of the highest oxalate foods there is, alongside beet greens, rhubarb, chard and endive. Oxalates have to be broken down in the gut. When the body cannot metabolize them efficiently, urinary oxalate rises, and close to 80% of kidney stones are reported to form from calcium oxalate. Oxalates binding calcium in the gut also blocks the calcium you were trying to absorb.

Here is the part that makes this a plan rather than a warning label. Viome does not decide by looking for one bacterium. They looked: they compared 1,500 people whose plan called spinach a superfood against 1,500 matched people told to avoid it, and the abundance of Oxalobacter formigenes, the textbook oxalate specialist, was not different between the two groups.

What was different was the score. Hundreds of species carry the enzymes that degrade oxalates, so Viome rolls all of that activity into a single number in the app, the Oxalate Metabolism Pathways score, and that number was significantly higher in the superfood group.

That is the mechanical answer to a question most people never get answered: why a food list is not a diet. A diet ranks foods. A plan ranks the fit between a food and one body, at one moment.

03  The same plate, three people

Viome's own scientists took the healthiest lunch on the internet apart, item by item

On Viome's podcast, biochemist Momo Vuyisich, PhD, and Guru Banavar, PhD, ran an exercise worth stealing. They built the meal every wellness feed agrees on, a spinach salad with sliced almonds, a side of roasted broccoli, and a glass of kombucha, then handed over the results of three real Viome tests and asked which parts had to come off each plate.

Case walkthrough published by Viome, viome.com/blog, "Are There Universal Superfoods?"

Then the number that makes the point land. Run that single plate through the model, Banavar says, and about 20% of the population could not eat it. Not because it is junk. Because it is somebody else's meal.

There's no such thing as a universally healthy food. There's only food that matches your individual biology, or it doesn't match your individual biology. Guru Banavar, PhD, on Viome's podcast, Are There Universal Superfoods?

04  Food by food, not food group by food group

The resolution is finer than you expect, and that is where it stops feeling like a diet

A member wrote in to Viome's nutrition team with a question that sounds like a glitch. Almond milk sits on their Enjoy list. Almonds sit on their Minimize list. Where does almond butter go?

The answer is not a rounding error, it is the model working. Making almond milk strips out most of the oxalates, by soaking and straining, by heat, or by adding calcium rich ingredients that bind them. Whole almonds keep theirs. Almond butter is whole almonds, so it follows the nut, not the milk. And because Minimize is not Avoid, the guidance was that a few servings a week are still fine.

The same granularity runs the other direction. Every recommendation carries the reason it was made, and the reason is a pathway, not a food group.

Egg yolk arriving at the top of a superfood list is a small thing that tells you a lot. Nothing in a generic heart health leaflet is going to open with egg yolk. This one did, because the model was not asked what is good for people. It was asked what this person's vascular defense pathways were short of.

05  What the first month looks like

Four moves, then a week by week order of operations

A list of 370 or more food recommendations is not actionable on its own. It becomes a plan when somebody tells you what to do first. In the app, the plan compresses the whole result down to four moves and then paces them across thirty days.

• Week one is subtraction only. Pause the specific grains working against the focus area. Nothing new to buy, nothing new to remember.
• Week two adds exactly one food. Not a menu. One item, with the reason attached, so you know what you are looking for when it works.
• Weeks three and four widen the bench with two or three more superfoods, framed as an experiment to see how you respond.
• The recipe engine does the assembly. Up to 3,000 recipes ranked against your own lists, with avoid foods excluded and each recipe labeled by how many of your foods it uses.

That last point is what turns the whole thing into groceries, which is where members describe it landing.

06  Where the supplements come in

The plan is explicit about what food cannot do, which is a strange thing for a supplement company to publish

The formula screen does something unusually honest. For each ingredient in a personalized blend, it shows what you would have to eat to get the same dose from a plate.

Viome's scientists pick from a portfolio of more than 200 ingredients and blend 50 or more into eight daily capsules, dosed against your scores and clinical trial dosages. The gut formula is built the same way, matching research backed strains and fibers such as apple pectin and guar gum to your specific microbiome, on the grounds that two people can react in opposite directions to the same probiotic.

Formula composition as published on viome.com. Personalized formulas are a separate subscription.

Two things worth knowing before you decide anything, both stated plainly by Viome. The personalized formulas are a separate subscription that starts after your results are released, and they are not included in the price of the test. And they are optional. Plenty of members run the food lists alone.

07  The part that annoys people

A real plan will contradict something you believe, and that is the most common complaint about it

The most useful reviews Viome publishes are not the enthusiastic ones. They are the irritated ones, because they describe exactly what a personalized plan feels like when it disagrees with you.

That reaction is the model doing its job, and Viome says so directly in their own writing on oxalates: foods that are generally considered healthy, spinach and kale among them, may not be healthy for you, depending on your microbiome's biochemical activity. The list is not a ruling on the food. It is a ruling on the pairing.

The second complaint is sharper and deserves a straight answer.

It reads like an inconsistency. It is the design. The recommendations are computed from gene expression, which is what your microbes are doing this month, not from DNA, which does not move. Change what you eat for six months and the activity changes, so the sorting changes with it. That is why the app writes avoid as a six month instruction rather than a permanent one, and why Viome asks you to retest twice a year rather than framing the first result as a verdict.

Distinction as Viome states it on their own product comparison, viome.com.

It also means the honest way to read a result is as a starting position. One member put six months between two tests and described the middle of it as the hard part, learning what her body responded to before she believed the numbers were hers at all.

08  What you actually buy

Two tests, one difference: how much of you gets read

Both kits are collected at home, in about twenty minutes, and mailed back prepaid to Viome's CLIA certified lab, where microbial activity is analyzed across more than 400 biological pathways. Results land in the app in roughly two weeks. Both are typically HSA and FSA eligible through Viome's partner Truemed, with a short survey at checkout producing the letter of medical necessity.

Figures published on the Full Body Intelligence product page, viome.com.

The difference between the two is not depth of gut analysis. It is breadth. Gut Intelligence answers what your gut is doing. Full Body Intelligence adds oral and cellular data, which is what unlocks the wider score set and, according to members who have run both, a longer food list to work with.

09  What members say once the list arrives

Four accounts, all published on Viome's own product pages

Reviews are published publicly on viome.com and belong to their authors. Quotations are trimmed for length and spelling only, never for meaning. Individual results vary.

Questions people ask before ordering

Get the food list built for youFull Body Intelligence Test · $399 list price · viome.com