Cucumber is classified by Aajonus not as a vegetable but as a fruit, specifically a bland fruit, and more precisely, a member of the squash family. He refers to it interchangeably as a summer squash and as a bland fruit with low carbohydrate content. This classification is foundational to understanding why cucumber holds a unique and irreplaceable role in the Primal Diet that no other food can duplicate.

The highest-level role of cucumber in the Primal Diet is collagen replacement and skin integrity preservation. Aajonus discovered, over years of observing patients on the Primal Diet long-term, that the diet as originally formulated, with its very limited fruit intake of only one fruit meal per day, was insufficient in collagen precursors to keep up with the continuous breakdown of collagen that occurs when the body discharges toxins through the skin. Because 90% of all toxins exit the body through the skin, and because that process continuously destroys collagen in skin and connective tissue, there is a perpetual and high demand for collagen replacement that the rest of the Primal Diet alone could not satisfy.

Cucumber, because it is a fruit but an unusually low-carbohydrate one, became Aajonus's solution to this problem. It provides all the collagen precursors the body needs to rebuild skin, connective tissue, and nerve sheathing, without introducing the high sugar load that would destabilize mineral balance, cause thirst, or create blood sugar swings. He states that after approximately six to seven percent of long-term Primal Diet followers began showing symptoms of lupus or MS, conditions caused by collagen and connective tissue breakdown, he began incorporating cucumber pulp (not juice, but puree) into the vegetable juice formula. This single change reversed those conditions and prevented them from developing in others.

Cucumber also serves as the central ingredient in Aajonus's hydration and sport drink formulas, where it replaces water as the primary hydrating medium, providing ionic hydration that actually carries H2O into cells rather than fractionating minerals the way plain water does. He considers cucumbers among the very best foods for thirst reduction and bodily hydration on a deep cellular level.

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Collagen Precursors, The Core Property

The most important property of cucumber, according to Aajonus, is that it is loaded with collagen precursors. He is explicit that it does not contain collagen itself, but rather contains everything the body needs to manufacture collagen, all the biochemical precursors. He states: "Not collagen, but collagen precursors. And as long as you're eating things raw, then collagen precursors, the body will make collagen from them."

He explains that this is precisely why the cosmetic and pharmaceutical industries put cucumber on skin masks and facial treatments, because the collagen precursors absorb directly into the skin. The same principle that makes topical cucumber effective, he says, makes internal cucumber consumption even more profoundly effective: "That's why spas use it to put it on the skin, on the face and stuff like that." He notes these benefits were already known as far back as Cleopatra's time.

He emphasizes that the collagen precursors are located specifically in the pulp of the cucumber, not in the juice, and not in the skin. This is the foundational reason why cucumber must be pureed rather than juiced: juicing extracts liquid but discards the fiber-bound pulp where the collagen precursors reside. He states directly: "Juicy cucumber doesn't have the collagen precursors in it. It's in the pulp."

He further explains that the fiber of cucumber, unlike the complex cellulose of leaf vegetables or root vegetables, is digestible for humans because cucumber is a fruit. "It's not a complex cellular like a vegetation like a leaf stalk. It's a fruit. So you can break it down." This makes it uniquely suitable for blending into juice, the pulp can be broken down and assimilated by the human digestive system in a way that vegetable fiber cannot.

Silica Content

Aajonus states that all of the cucumber is high in silica, and that the silica is associated with the collagen precursor function. He says: "The benefit to that is that the silica in all of the cucumber has collagen precursors. That means it will help replace your skin, your connective tissue. You'll get rid of more wrinkles. You'll hydrate better. You'll get younger. The tissue will be better."

Low Carbohydrate Profile, The Key Advantage Over Other Fruits

Aajonus repeatedly emphasizes that cucumber achieves the collagen precursor benefits of a fruit while avoiding the problems of high-carbohydrate fruits. He explains that while other fruits such as watermelon or melons also have some collagen precursors, they carry high sugar loads that destabilize mineral balance, increase thirst, and cause blood sugar highs and lows. Cucumber does not have this problem. He says: "Cucumber you don't have that. You don't have that problem with cucumber. You don't get high carbohydrate. You don't get the sugar high and the sugar low. You don't get the mineral imbalance. You don't get the excessive thirst."

Hydration, Ionic vs. Water Hydration

Cucumber puree is Aajonus's preferred hydration medium because it contains the molecular bonds, ions, and molecules necessary to carry H2O into cells. He explains that plain water lacks these carriers and actually dehydrates the body at a cellular level by fractionating minerals. Cucumber in puree form provides what he calls true ionic hydration. He documents this from personal experience: "I put coconut cream in it, I put dairy cream in it, I put honey, I put a little lemon juice in it. And cucumber, peeled a cucumber, and blended that all together. And I was able to drink that over a 24-hour period and not get thirsty. The one time that I drank about 3 quarters of a cup of water, my mouth went completely dry and peeling terribly."

He further states that cucumber "cuts thirst down tremendously" and that elite athletes, including champion tennis players, rely on cucumber-based formulas rather than conventional sports drinks or plain water during intense competition.

Collagen Protection Against Toxin-Induced Breakdown

Aajonus explains the mechanism by which the Primal Diet, without sufficient collagen precursors, can lead to progressive skin and connective tissue deterioration. Because the body uses the skin as the primary route for 90% of its toxin elimination, and because people transitioning from cooked diets carry enormous toxic loads, the collagen in skin and connective tissue is continuously being damaged as toxins are pushed through. Without adequate replacement of collagen precursors, the connective tissue begins to dissolve (lupus) or the nerve sheaths begin to harden and die back (MS). He states: "So, and that wasn't many people, but that was probably about 6-7 percent of the people on the primal diet, long term. If they had done the hot baths, that wasn't their problem. But if they weren't doing the hot baths, they needed to replace the collagen in the skin from the damage. The cucumber pulp has collagen precursors."

He also notes: "We need more collagen than let's say the Eskimos or the Maasai or the Samburu. We need it, they don't. They're not toxic, we are."

The Peel: Alkalizing Effects, Beneficial and Problematic

Aajonus acknowledges that the peel of organically grown, non-waxed cucumber does contain some nutrients, specifically he mentions vitamin D and vitamin E. However, he identifies two distinct problems with the peel:

First, the peel is a tough cellulose, effectively the same category as vegetable fiber, and humans cannot digest it. He says: "Take a vegetarian animal to do it." If the peel passes through the intestinal tract undigested, it creates localized over-alkalinity, which interferes with the digestion of milk, meat, and other foods that may follow it. He explains: "If you have the cucumber skin pass through you, it can cause some over alkalinity in spots and prevent you from digesting your milk and meat that may come behind it and catch up with it. And you don't want that."

Second, and more critically, commercially grown cucumbers, even certified organic ones, are coated with petroleum-based wax, making the peel toxic to ingest. (See Section 12 for full detail on contamination.)

Sexual Effects, Peel vs. No Peel

Aajonus documents that the peel of cucumber has effects on sexual function. He states: "If you like to be horny, if you like to be horny and you like sex and you like to feel erect, peel the cucumber. Works for men and women that way. It acts like a Viagra."

However, he qualifies this substantially: "However, in my experiments with men and some women, the peel in about 40% of the people caused just the opposite. It was difficult to get away. Either clitoral or vaginal. I mean either clitoral or penile." He attributes this effect of the peel to its vitamin A and vitamin D content. He says of peel-on cucumber in this context: "I think it makes the penis very relaxed. Vitamin A and vitamin D."

He also states that when he personally consumes cucumber with the peel on, "it makes me very mental."

His practical recommendation: experiment to determine which response you have personally, and then choose accordingly whether to include or exclude the peel.

He notes that if a person is experiencing difficulty with sexual performance or achieving orgasm, removing the peel is the first modification to make to cucumber preparation.

Bowel and Sigmoid Colon Effects

Aajonus notes that cucumber pulp in the juice helps soften hardened fecal matter that accumulates in the sigmoid colon. "Those people who have a tendency to have that hardening of the fecal matter in the sigmoid colon, it lessens the dryness, although it's not feeding fat to the bacteria in the colon, it's still helping to make things softer." He notes this may slightly interfere with fat digestion or absorption, but that the benefit in bowel mobility and collagen replacement outweighs this minor drawback.

Alkalizing Nature

Cucumber is described as "highly alkalizing, but not like leaves and roots and stalks are." As a fruit, its alkalizing effect is more moderate and manageable than that of vegetable fiber, and it does not create the intestinal over-alkalinity problems that vegetable peels would if consumed whole.

Chromatin Precursors

In one passage, Aajonus states that cucumbers "have a lot of chromatin precursors so they help you revitalize the skin," in addition to their collagen precursor content.

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Puree, Not Juice, The Critical Distinction

The single most important instruction Aajonus gives about cucumber is that it must be pureed, not juiced. He is emphatic about this distinction and explains it in multiple ways across many sessions. The reason is the location of the collagen precursors: they are in the pulp, in the fiber of the fruit. When cucumber is run through a juicer, the pulp is discarded and only the liquid is extracted, the collagen precursors go into the trash with the pulp. He states: "Juicy cucumber doesn't have the collagen precursors in it. It's in the pulp."

He acknowledges that his earlier recipe books instructed people to juice the cucumber, and he explicitly corrects this: "Now, cucumber I've changed in the recipe book I talked about juicing the cucumber. However, I found that a lot of people, because they weren't cleaning their lymph systems, their skin was getting very damaged, they were moving toward symptoms of lupus... So, and that wasn't many people, but that was probably about 6-7 percent of the people on the primal diet, long term."

He describes the proper preparation: peel the cucumber, slice it into cubes or circles, place it in a jar, pour the freshly juiced vegetable juice over it, then blend everything together. The result is described as a "pulpy juice", a thick, fiber-rich liquid that must be chewed rather than gulped. He instructs: "You blend them with your vegetable juice and you chew it."

Instructions for Chewing the Pulp

Aajonus specifically addresses whether to chew or swallow the cucumber puree. When asked whether to keep the puree separate and chew it, or simply mix it into the juice, he answers: "Do not separate the cucumber pulp, chew it in the juice; that way people will not gulp, and they will build more collagen."

He also instructs that juice in general should never be gulped, it must be sipped and sucked through the teeth: "You do not gulp it. Whenever you gulp any food, a great amount of the water, the H2O, will rush to the kidneys. Too much water at one time."

Ripe vs. Unripe

Aajonus states: "Cucumbers you don't have to worry about whether they're ripe or not except that if they're so far along you're going to have pickles, not quite the same." This means that over-ripe cucumbers, being high in fermented carbohydrates, behave more like a high-carbohydrate sweet fruit and should be considered in that category.

Refrigeration and Shelf Life in Juice Form

Once blended into vegetable juice, the cucumber puree begins to separate. Aajonus instructs that the blended juice-cucumber mixture must be immediately divided into individual jars with as little air space as possible, to slow oxidation and keep the pulp evenly distributed. He states: "Otherwise you're going to have, the cucumber is going to start separating in your juice. And then you're going to get a lot of cucumber pulp in one juice and not another. So you divide it that way. You may have to shake it a couple of times while you're putting it in the jar. Or stir it either way to get it out evenly."

He also notes: "Put it in the jars right away so it can last you three to four days."

Cucumber Seeds

Aajonus states he has found only one person who has had problems with cucumber seeds. He says: "I know somebody that claims that it happens with tomatoes and it does. It makes them miserable. So, he'll cut out the cucumber seeds, but the cucumber seeds are very large. They're not like the tomato seeds. But he cuts out the cucumber seeds anyway. So, I only know one person who doesn't eat the cucumber seeds." The general instruction is that seeds do not need to be removed for most people.

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The Fundamental Rule: Always Peel

Aajonus's instruction is absolute and applies universally regardless of labeling: always peel the cucumber. He states this in virtually every discussion of cucumber. The peeling is required for two simultaneous reasons, indigestibility of the cellulose skin, and contamination with petroleum-based wax.

He states: "Peel the cucumber whether it's organic or not because you can't adjust the peel. It is tough cellulose. Take a vegetarian animal to do it."

He extends this peeling requirement to other waxed produce: "I will even peel a zucchini because they put petroleum wax on it. 20 years ago it was 5% they were allowed, now it's all the way up to 15%. The FDA is killing us, not protecting us. That's on organic, 15% on organic. So you have to be careful." He lists apples, pears, zucchini, and other squash as also requiring peeling.

The Wax Problem, Identifying Contamination

Aajonus gives specific instructions for identifying whether a cucumber has been waxed:

• If the cucumber is shiny, it has been waxed. He states: "You peel them... all of them you have to peel nowadays. They're all coated even if they're organic unless you see that they're not shiny at all and they've got a dull finish on them. Then you'll know they haven't been sprayed."

• He provides a tactile test: "You can take a flat knife, and you can peel, you can scrape the wax. If the wax dissolves in your finger, it's natural. If it does not, if it turns into a waxy, oily substance or thick substance that doesn't dissolve, it is a manufactured wax."

• He notes that non-organic commercial cucumbers are noticeably slick to the touch in the store: "Pretty slimy. Because I know on the non-organic, you can."

The Organic Label is Unreliable

Aajonus is emphatic that the certified organic label provides no protection against petroleum wax contamination. He states: "With the laws that the FDA has screwed us with on organic, nothing is truly organic. If you get organic cucumbers and they've been waxed, they've been waxed with 15% petroleum wax." He confirms this was documented: "Somebody didn't believe me, and they would have looked on the box. There it was, petroleum wax."

He states that "90% of even the organics are now sprayed."

He also notes: "Even if they're organic unless you see that they're not shiny at all." He says at another point: "They allow 17% toxic substances including petroleum wax on organic foods."

The One Exception: Home-Grown Cucumbers

The only situation in which Aajonus permits leaving the peel on, and even then only for the purpose of running it through the juicer to extract peel nutrients, is when the cucumber was grown by the person themselves. He states: "If you grow the cucumbers yourself and the fruit yourself, of course you don't have to peel them." In this case, he says the peels can be run through the juicer alongside the other vegetables to extract vitamin D, vitamin E, and other peel nutrients.

He adds: "But you're not going to digest the peels if you want to get nutrients out of the peels as much as possible, you juice your peels with your vegetables. Then you'll get a lot of nutrients from those peels. You cannot break them down unless you want to chew them for an hour like a cow does."

Even with home-grown cucumbers, if the person wishes to include peel nutrients, Aajonus recommends juicing the peel separately and combining with the puree, not blending the peel into the puree.

Preparation Sequence

Aajonus describes the full preparation sequence repeatedly and consistently:

1. Juice all other vegetables first: celery, carrot, parsley, cilantro, beet, zucchini, mint, whatever is in the formula 2. Take the cucumber and peel it, "peel the cucumber until all the dark green is removed" (per one written instruction) 3. Slice the peeled cucumber into circles or cubes 4. Place the cucumber slices in a jar (the blending jar) 5. Pour the freshly made vegetable juice over the cucumber slices 6. Add a little honey if desired 7. Blend everything together using an Osterizer or similar blender, with as little air space in the jar as possible to minimize oxidation 8. Divide the resulting pulpy juice immediately into individual serving jars 9. Consume 1–3 jars per day, shaking or stirring before each serving to redistribute the settled pulp

He also gives a juicer-specific tip for handling cucumber when it must pass through the juicer (for the peel, if home-grown): "Zucchini, cucumber, it's very mushy. So, I'll only put like a quarter of one. I'll cut it into quarters. I'll put only one of those through at a time and then I'll put celery and then I'll put parsley. Parsley dries it up. So, I'll put a celery, then I'll put, you know, some cucumber or zucchini in there and then because then it gets all mushy and then I'll put the parsley in there, stalk in, and then it just pulls it through and it helps get the juice out of the cucumber or zucchini."

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While Aajonus does not specify a single mandatory fat pairing for cucumber in the same categorical way he does for some other foods, he consistently combines cucumber with fats in multiple formulas. These pairings are not incidental, they reflect his consistent framework that fat is required to absorb fat-soluble nutrients and to buffer all digestive activity.

In the sport formula, he pairs cucumber puree with dairy cream (2–4 tablespoons) and coconut cream (2–4 tablespoons). He states: "Internally or externally? Internally. But it's best not to juice too much of the cucumber. It's best to peel them and blend them with the vegetable juice so you can get the collagen and the fat." The mention of fat alongside collagen here suggests the fat co-extraction is intentional.

He warns specifically about cucumber puree in the context of a patient being advised to add it to juice: "I do not want you to forget the need for fat and think that because your skin may improve so much with cucumber puree that you do not need as much fat." This indicates that while cucumber puree improves skin, it does not replace the fat required for fat absorption through the skin, both are necessary.

In the hydration/sport formula, the fat components, coconut cream and dairy cream, are required components that complete the formula, not optional additions.

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Hives and Skin Rashes, Cold Cucumber Slices

Aajonus documents using cold cucumber slices directly on hives repeatedly throughout a severe skin detoxification episode. He states: "I took cucumber with an ice pack and tomatoes. So, I sliced them and rubbed them over the hives and then settled them down for an hour. So, I was in and out of the bathroom in the plane, rubbing them on, taking off my clothes." He continued this protocol every hour for three days, rotating between cold cucumber/tomato slices and cold baths with vinegar and tomato.

He documents keeping cold cucumbers from the refrigerator specifically for this purpose: "So as soon as I got off the plane in Hanoi, I got some tomatoes, put them in the refrigerator, some cucumbers... So I'm there in the hotel room rubbing every hour, either rubbing slices of cold tomato on those. These hives are all over my butt and all over my stomach, all over this area right here."

He combined topical cucumber and tomato application with cold bathtub soaks, rotating the external applications to prevent scratching and to draw the toxic discharge out through the skin in a controlled way.

Facial Use / Collagen and Wrinkle Reduction, Topical Experiment

Aajonus references Cleopatra using cucumber topically for skin: "That's been since Cleopatra did that. Probably." He also notes that vitamin A and vitamin D are present in the peel and can be absorbed topically.

He sets up an experimental protocol boundary: "Anybody who wants to experiment with it on their skin, and not, you can't take it internally and know what it's going to do on the skin if you do both. You have to do one or the other to see how it's going to work."

He had been combining his cucumber puree protocol internally with topical bone marrow/sperm application externally on his face for wrinkle reduction, noting these were kept as separate experiments to distinguish effects.

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Daily Vegetable Juice, Cucumber Proportion

• Minimum: 20% of total juice volume as cucumber puree
• Standard: 30–35% of total juice volume
• Maximum in some formulas: up to 40–50% of total juice volume
• One Q&A response documents 50% cucumber for some new patients

Daily Frequency of Vegetable Juice Containing Cucumber

• Standard: 1–3 glasses of vegetable juice (8 ounces each) per day containing cucumber puree
• For skin repair conditions: all daily juice servings should contain cucumber puree
• For personal experimentation: Aajonus began at 2–3 days per week to assess response before committing to daily use

Sport Formula Frequency

• Sip throughout the day during athletic activity
• Aajonus describes champion tennis players consuming this during active competition

Cucumber in Juice Storage

• Consume within 3–4 days of preparation when stored in sealed jars
• Must be shaken or stirred before each serving to redistribute settled pulp
• Keep jars as full as possible (minimal air space) to reduce oxidation

Seeds

• Leave seeds in for most people
• Remove only if there is a documented personal sensitivity to cucumber seeds (Aajonus found only one such person in his clinical experience)

Waxed Peel Safety

• If the cucumber has any wax on it: peel and discard the peel entirely; do not juice the peel
• Only if home-grown: peel may be run through juicer with other vegetables to extract nutrients
• Never blend the peel into the puree under any circumstances

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Primary Culinary Use: Blended in Vegetable Juice

The primary culinary preparation is the vegetable juice with cucumber puree as described throughout. Aajonus states he eats whole cucumbers as well: "I also eat cucumbers. I like cucumbers. They're very satisfying. They help thirst." But the therapeutic preparation is always the pureed form in juice.

Pickles, Raw Apple Cider Vinegar Pickles

Aajonus documents making pickles from pickling cucumbers in raw apple cider vinegar. He instructs:

Dill Pickles: - Pickling cucumbers - Raw apple cider vinegar - 1 teaspoon unheated honey - Tablespoons fresh dill weed - Natural mineral water - "Blenderize vinegar, honey, dill and 1 ounce water together in an 8-ounce jar for 10 seconds on low speed. Slice cucumbers lengthwise into quarters. Slice the quarters into halves horizontally. Stuff cucumbers in a 16-ounce jar, pour in blenderized mixture into jar. If more water is needed to cover cucumbers, add it now. Cap and gently turn jar upside down and back several times. Let stand in refrigerator for 24 hours." - Storage: "It will keep in refrigeration for 2 months." - Alternative additions: garlic or ginger slices, or any other spice before adding water

Sweet Pickles (10 servings): - 4 pickling cucumbers - ½ cup raw apple cider vinegar - 3 tablespoons unheated honey - ¼ cup natural mineral water - Same preparation method as dill pickles

He specifies pickling cucumbers as important: "It's the best. Otherwise they don't taste... they have a different taste. It's almost like a waxy taste if you don't use the pickling cucumbers. There is a sweetness to the pickling cucumbers."

He also documents having pickles stored in his refrigerator for over a year: "I had it in the fridge about a year and three months... They were just too much. It was like drinking straight vinegar. They were too strong." This suggests that while pickles keep 2 months per standard instruction, extended aging makes them overly acidic and pungent.

Dietary Note on Pickled Cucumber

Aajonus classifies pickled cucumber as a high-carbohydrate food because the fermentation process converts the starches to sugars via alcohol. It should be consumed as one would treat a sweet fruit, not as a neutral vegetable or collagen source.

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Cucumber Puree

The primary derivative is the cucumber puree itself, the peeled, blended form that carries the collagen precursors. This is not a separate product but a prepared state of the whole cucumber. Everything in Sections 2–10 pertains to this derivative form as the therapeutic standard. It is the form Aajonus universally recommends for internal use, and it constitutes 20–50% of the daily vegetable juice volume.

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FDA and USDA Organic Fraud, Petroleum Wax

Aajonus documents in detail his discovery that the FDA and USDA allow cucumbers and other produce to be coated with petroleum-based paraffin wax and still be sold and labeled as certified organic. He states the allowable petroleum content has escalated dramatically:

• "20 years ago it was 5% they were allowed, now it's all the way up to 15%."
• "The FDA lets them use 15% petroleum paraffin wax in an organic, on an organic cucumber and some other foods like apples."
• "They allow 17% toxic substances including petroleum wax on organic foods."
• In one passage he notes: "They allow 2% to 5% petroleum. No, those rules don't even say it, don't even mention it."

He states this was independently verified: "Somebody didn't believe me, and they would have looked on the box. There it was, petroleum wax."

He extends this corruption to other produce: "I will even peel a zucchini because they put petroleum wax on it... Apples, pears, all of them you have to peel nowadays. They're all coated even if they're organic unless you see that they're not shiny at all."

He describes this as a deliberate pattern: "They're getting craftier than ever in hiding their pollution."

His summary indictment: "The FDA is killing us, not protecting us."

The Cosmetic and Pharmaceutical Industry's Use of Cucumber

Aajonus frames the cosmetic and pharmaceutical industry's use of collagen as an expensive and problematic intervention that cucumber consumption renders unnecessary. He states: "Collagen is with the pharmaceutical industry, the cosmetic industry. Your skin will be rich and smooth, your connective tissue, your skin won't sag, your muscles will be replaced, and all of that. That's why they put cucumbers in masks and stuff like that, because it absorbs into the skin."

He documents that pharmaceutical collagen injections cause patients to look "like the dough boy", disfigured by bloating, for up to a year and a half after injection, and that "none of them want to look like that." He presents cucumber puree as the rational alternative: "You don't have to go around looking like the dough boy to get the collagen replaced."

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