If you've been following along with my work for any length of time, you know I'm not big on chasing symptoms or treating diseases by name. We clean and nourish the system that's affected, then let the body do its job.

This post walks through what your pH number actually means across your whole body, why your body wants it sitting at 6.40 specifically, how calcium drives everything about this number, the five symptom patterns that show up when urine and saliva disagree with each other, and exactly what to do for each one including which herbs help get digestion back on track so the rest of the system can start catching up.

This blog is for informational purposes only and is not intended to diagnose, treat, cure, or prescribe for any condition. It is not a substitute for professional medical advice.

I want to be clear that we're working in a different realm here. We're looking at a number that nobody else measures, and we're seeing how that specific number affects the whole body in distinct ways. Some of the terms I use may sound like the major terms doctors use, but they are not.

​Remember, we are not measuring the medical pH that doctors look at when they're checking for acid reflux or stomach acidity. We're measuring the electrical resistance between two opposing forces in your body — the cations and the anions — and how that resistance shows up in your urine and saliva. This affects how your digestive enzymes work, how your liver processes what you eat, and how calcium moves through your system. So when we talk about pH here, we are not talking about what the medical industry measures.

Your body wants its number at 6.40. That's not the same as neutral on the standard 0-14 chemistry scale, where 7.00 is the midpoint. 6.40 is your ideal biologic pH, the line of least resistance where your body's electrical resistance is balanced, not too much friction, not too little. Every cell in your body runs best when the chemistry sits there. When it drifts away from 6.40 in either direction, things start breaking down before you feel anything wrong.

Calcium, the calcium in your diet and the calcium reserve already in your body, is what governs your pH overall. Your urine pH shows this most directly. It's the endpoint, the calcium that's already been absorbed and processed, moving out of your system. When calcium is missing or out of balance, your urine number drifts away from 6.40. When calcium comes back into balance, your number comes back toward 6.40. Calcium isn't just one thing either, there are seven different types that affect your chemistry in three different directions.

Your saliva pH is still a calcium number underneath, but it's asking a different question than urine pH does. It's not asking how much calcium you have, it's asking whether that calcium can actually get absorbed and put to use. That's where iron and B-12 come in. They don't add calcium, they change its availability, and that's the only way the saliva number actually moves. This is why taking more calcium on its own has never been shown to change the mouth pH. Calcium is still the thing being regulated, but iron and B-12 are what let your body get to it. They do this by making oxygen delivery possible, since they're what your hemoglobin needs to carry oxygen to your cells. When oxygen delivery slows down, the liver can't pick up the calcium it needs, even if there's plenty of calcium available, and that's what shows up as a drifting saliva number.

This is also why your sugar reading matters for saliva pH. When sugar is out of range, it throws off oxygen levels, and oxygen is what makes calcium absorption possible. So a bad sugar number can wreck your saliva pH even when your calcium is fine. And this is the important part: you can't fix saliva pH by just taking more calcium. The calcium isn't the problem, the absorption is. The only way to move saliva pH is to get oxygen levels back in range so the calcium you already have can actually be picked up and used.

Everything you just read runs through one organ. Your liver can't do its job without six things: water, oxygen, calcium, iron, iodine, and vitamin A. Take away any one of them and the liver can't build the digestive enzymes your body needs, can't pick up and deliver calcium where it's supposed to go, and can't keep your chemistry anywhere near 6.40. This is why urine pH and saliva pH aren't really about urine or saliva at all. They're a window into whether your liver has what it needs to function.

And you can already see most of these six in the numbers we've covered. Calcium is the constant underneath both readings — it shows up directly in your urine pH, and in your saliva pH it's the thing whose availability is being tested. Oxygen shows up in your saliva pH and gets pulled off course by your sugar number. Iron and B-12 show up in your saliva pH too, since they're what make that oxygen usable in the first place, and by extension what make your calcium usable but the direction matters. When saliva pH runs at 6.4 or below, that's the body failing to pick up iron, and B-12 is what's needed to help absorb it. When it's paired with other numbers being out of range too, that's a severe pattern touching vitamin A, iron, and B-12 all at once. When saliva pH runs above 6.4 instead, it's a different problem: resistance is too high and energy movement has slowed down, not a sign you simply need more iron. Vitamin A plays one more role beyond this. Alongside iron and iodine, it's part of the liver's basic cellular structure, what lets the liver replace its own cells and keep building the amino acids and enzymes the rest of your body depends on. Water is the one we haven't touched yet, that comes when we get to your salt number, which is where you'll see how well you're actually hydrating.

When one of these six is missing or low, the liver falls behind, and that's when you start seeing the drift.

Your pH reading is a measure of electrical resistance in your body's fluids. 6.40 is the point where that resistance is exactly right, the point that produces the best electrical flow and magnetism for picking up minerals, building liver enzymes, and building tissue. When you drift off 6.40, that resistance changes, and your whole energy frequency shifts with it. That's the real reason mineral utilization starts failing before you feel anything.

When your number climbs above 6.40, electrical flow slows down because there's too much resistance, and digestion slows down with it, tending toward constipation, heaviness after eating, and sluggish gut motility. When it drops below 6.40, there's too little resistance, so electrical flow and friction speed up, and digestion rushes, tending toward diarrhea and nutrients passing through before they can be absorbed. Either way, your digestive enzymes aren't working at full strength because they need that 6.40 resistance to function properly.

Your liver creates most of your digestive enzymes based on signals from your brain about what food is coming in, and it depends on calcium more than anything else to give those enzymes their strength and buffering. When pH drifts, the liver isn't getting the mineral energy it needs, so those enzymes get built wrong or shipped out half-finished, and your body can't properly link up new cells, amino acids, or DNA building blocks. The whole digestive chain breaks down before any traditional symptom shows up in how you feel after meals.​

Drifting off 6.40 throws off your cells' oxidation-reduction balance, which is the exchange of oxygen and hydrogen pressure inside your cells. Go too far one way and that exchange runs too fast, breaking cells apart faster than they can hold their structure. Go too far the other way and it runs too slow, congesting your cells with minerals that never get used and dead cellular debris that never gets cleared.

Every time your pH drifts away from Range A, these misfiring oxidation-reduction reactions throw off extra free radicals. That's what turns into cell injury, tissue inflammation, and degenerative disease over time if it isn't corrected.

High pH people tend toward sluggishness, weight gain, congestion, and fluid retention, along with that thickened, heavy feeling in the tissues. Low pH people tend toward nervousness, anxiety, feeling wired but tired, burnout, and weight loss, along with more friction, heat, and physical irritation as tissue breaks down faster than it can rebuild. Both directions put stress on collagen, the cement holding your cells together, but vitamin C plays a different role depending on which way you've drifted, and it's not just about how much you need, it's about whether your body can actually use it. On the low, cationic side, vitamin C deficiency runs severe, and your body genuinely needs it, but it can't make use of vitamin C in the usual supplement forms while pH is that low. On the high, anionic side, it's the opposite: your body both needs it and can actually use it, which is why megadoses of vitamin C are used there to add cations back in and help bring the pH down.

Whichever way you drift, your digestive enzymes can't pull energy out of food properly, so your cells run on fumes, which shows up as brain fog and chronic fatigue. Misregulated calcium starts showing up in two places at once, deposits and calcifications forming in some areas while bone and joints get robbed of calcium in others. And the buildup of free radicals means slower healing and faster aging on top of everything else.

The pH scale runs from 0 to 14. Seven is neutral on a chemistry bench. But your body doesn't run on a chemistry bench, and 6.40 isn't chemistry's neutral point, it's yours.

The human urine and saliva pH range runs from a low of 4.80 to a high of 8.00. Split that range down the middle and you land exactly on 6.40. That's not a rounded-off estimate, it's the literal midpoint of what your body can survive at, which is why it's the balance point your chemistry is built around.

pH isn't just a number on a scale, it's a measure of electrical resistance between two opposing forces in your body, cations and anions. At 6.40, that resistance is calibrated exactly right, giving you the best line of least resistance for moving energy through your system without wasting any of it. When your number climbs above 6.40, there's too much resistance and everything slows down. Digestion drags, and your body can't move toxins out efficiently. When your number drops below 6.40, there's too little resistance and everything moves too fast, burning through your system without doing the work it needs to do. Your cells can't hold onto what they're supposed to hold onto.