---
title: 'When Salt IMPROVES Blood Pressure (Science-Backed)'
source: 'https://youtube.com/watch?v=n__t3_rT2Pw'
video_id: 'n__t3_rT2Pw'
date: 2026-09-24
duration_sec: 741
channel: 'Nutrition Made Simple!'
---

# When Salt IMPROVES Blood Pressure (Science-Backed)

> Source: [When Salt IMPROVES Blood Pressure (Science-Backed)](https://youtube.com/watch?v=n__t3_rT2Pw)

## Summary

This video challenges the universal advice to cut salt for blood pressure control, presenting a crossover trial where 213 participants followed high- and low-salt diets. The results reveal significant individual variability, including a paradoxical 'inverse salt sensitivity' where some people's blood pressure drops on high salt. The video then explores natural strategies to lower blood pressure, such as magnesium, potassium, weight loss, and lifestyle changes.

### Key Points

- **Study Design and Salt Intake Levels** [00:13] — 213 participants were put on high-salt and low-salt diets. Baseline sodium intake was ~4.5g/day; low-salt diet achieved ~1.3g/day, high-salt ~5g/day, a threefold difference.
- **Average Blood Pressure Response** [02:27] — On average, high salt raised systolic blood pressure by ~8 mmHg, comparable to some blood pressure medications. The crossover design confirmed the direction.
- **Individual Variability** [03:14] — Individual responses varied widely: some saw increases up to 50 points, others saw decreases of 30-40 points on high salt. This heterogeneity is consistent across studies.
- **Inverse Salt Sensitivity** [04:23] — About 15% of the population may have inverse salt sensitivity, where blood pressure improves on high salt. This phenomenon has a name and is recognized in the literature.
- **Caveat and Rigor** [05:14] — The paradoxical response could be statistical variability; formal proof requires repeated trials on the same individuals. Genetic differences have been identified, suggesting it's real.
- **Proposed Mechanism** [07:20] — The renin-angiotensin pathway may overcompensate in some individuals when salt is cut, causing the body to conserve too much sodium and raise blood pressure.
- **Natural Blood Pressure Strategies** [08:54] — Five key strategies: magnesium (supports nitric oxide), potassium (signals kidneys to excrete sodium), weight loss (lowers insulin), reducing alcohol, and improving sleep/stress.
- **Magnesium and Potassium Sources** [09:36] — Top magnesium sources: pumpkin seeds, hemp seeds, cacao powder. Top potassium sources: beet greens (900mg per cooked weight vs banana's 400mg).

### Conclusion

The video concludes that while average guidelines are useful for populations, individuals should measure their own blood pressure and experiment with diet to find what works for them. Natural strategies like magnesium, potassium, weight loss, and lifestyle changes can be effective, especially for those with inverse salt sensitivity.

## Transcript

We've been told our whole lives that salt raises your blood pressure, and if you want to bring yours down, you have to cut the salt. But science has evolved fast on this, and we now understand there's a lot more to this story.
Because the recommendations worldwide are to stay under a specific amount of salt in the food. But does that apply equally to everyone? Does that apply to you? To answer this question, scientists took 213 people, and they put them on two different diets.
high salt and low salt. So what's high salt and what's low salt? Just to give you an idea, the recommendations worldwide are to try to stay under two grams of sodium daily. So WHO,
European organizations, that's the cutoff. In the U.S., it's a little different, sometimes under 2.3. Some recommend the ideal range is under 1.5, but that's the general ballpark. Now, that's two grams
of sodium. Table salt, the regular salt we use at the table, roughly half of that is sodium. So, two grams of sodium would be about five grams, give or take, of salt, which is about a level
teaspoon. And that's total sodium daily, including the sodium that's naturally present in foods and sodium added total over the course of the day, two grams. So, it's pretty low. So, that's just to
give us some reference. Now, the investigators estimated the sodium intake of the participants before the trial on their usual diet, and it came down to about 4.5 grams a day. So, about twice
those recommendations at CAP given by the WHO and other organizations. And then on the two diets of the trial, the low-sodium diet, they ended up eating about 1.3 grams of sodium a day. The
Investigators actually wanted to shoot for 0.5, for half a gram daily, but they couldn't get the participants to cut back so much, so they ended up eating about 1.3. And on the high-salt diet, it was about 5 grams a day of sodium.
So big difference between the diets, about a three-fold difference give or take. And interestingly, these two levels of intake from the trial, they do cross the guidelines. So one is lower and one is a lot higher.
So there should be a really good test of the value of this cutoff used in the guidelines. So this is the average of all the participants. This is what they reported. So they start out baseline, their regular diet,
and then they go on to the study diets, high salt and low salt, for about a week, and then measure the blood pressure before and after. And what they report is that the blood pressure was higher average on the high salt diet,
About an 8 point difference, 8 millimeters mercury, which is in the range of some common blood pressure lowering medications. So it's a substantial difference. So this is for systolic blood pressure, the top value on your reading.
Then they switched everybody to the other diet. So this is called the crossover trial. Everybody goes on both diets. So the guys that were in the high salt diet go on low salt and vice versa And the difference was a little smaller but overall same general direction In fact the folks on high salt had higher blood pressure Now this is where it gets interesting because this is the average of everyone Now let look at the
results individually, per person. Each of these bars is one person, one individual participant, and these are the results comparing low salt to high salt. So basically, the effect of increasing
salt in the diet by about threefold to what they did in the study. So you see that some people saw a massive increase in their blood pressure, close to 50 points, which is gigantic. The vast majority were much lower than that, some around 20 points, many around 10 points. But look at this
other side over here. There were a significant chunk of people that saw their blood pressure come down on high salt. Some of the most extreme saw a decrease of 30, 40 points, massive.
The majority, again, are around 10 points or so, a little, 5-10 points. Now, this study had some limitations, but this is not an isolated finding. Numerous studies have now done this, broken down the results per participant,
and this is a pretty consistent finding. We see a huge spread, some people go up, some people go down, and some people don't see much of a difference. The exact number of people that have this paradoxical response where their blood pressure actually improves on high salt,
The exact number varies. One analysis estimates that it's about 15% of the population. So this has been seen and reported so many times, it even has a name. It's called inverse salt sensitivity.
So if your blood pressure goes up significantly on high salt, that's called salt sensitivity. If you don't see much of a change, that's called salt insensitivity. And if it comes down, it's called inverse salt sensitivity.
Next, we're going to talk about some dynamite ways to lower blood pressure that are kind of neglected, that are not talked about much, both for these folks, particularly interesting for people with inverse salt sensitivity,
but also that work in general. But first, I just want to point out a caveat. This result, this heterogeneity, and some people having this paradoxical response, in all rigor, this could just be variability.
That you run the trial, there's going to be a spread of results, and if you test the same people again, that those people are now going to go up, so that they're not legit inverse salt sensitivity. The real way to nail this is to run the trial twice, basically.
You want to test the exact same people twice on the same exact diets, and you want to check that the response is the same. Both times, when you raise the salt, their blood pressure drops. As far as I know, this has not been done specifically for this population of inverse salt sensitivity,
so it hasn't been formally proven. And I think it's very likely that this is real, not just because we see it over and over, but they've even identified some of the genetic differences in some studies between these folks
and those that have a more typical response where the blood pressure goes up with salt. So I think it probably real but for rigor we should state that And if this is a real phenomenon think about the implications because the guidelines the recommendations are the same for everyone but they could have a monumentally different impact on different people It true that most people in that
experiment saw their blood pressure go up when they upped the salt, so the average aligns with the guidelines, with the recommendations. And it's true that a lot of people in our society, a lot of Westerners and a lot of non-Westerners as well, consume too much sodium and would be
better off consuming less. That's all true, and in fact, that's my case. When I reduce sodium, my blood pressure comes down 10 points or more. But according to that experiment, it's also true that for a chunk of people, that doesn't apply, and that's potentially millions of people.
Now, of course, guidelines for millions of people have to give you some general direction that has to be aligned with the average. So that's understandable. But at an individual level, do you care what the average of the population is?
Not at all. You care what happens to you. So measuring your own blood pressure, which is quick and painless and non-invasive, and playing with the factors in the food and watching what happens over time, is going to be much more informative for you and your health than going by these cutoffs that are the average for everyone.
Now, how does this work? Why do some people seem to have this paradoxical response? The exact details are being worked out, but one proposed mechanism is that when most people cut salt, there's a specific pathway called a renin-angiotensin pathway
that signals to your kidney to hold on to more sodium, to reabsorb it, to pull that from the urine, and basically for your body to conserve more sodium. Basically, your body is sensing that there's less sodium coming in through the diet,
and so it's compensating by holding on to more of it. It's an evolutionary mechanism. Now, in most people, this compensation is incomplete, especially over the long run, and so blood pressure ends up going down if you cut salt.
But the proposed idea here is that in some individuals, their compensatory mechanism is so effective that they overshoot. Their body now conserves so much sodium when they cut salt that their blood pressure actually goes up.
Now, the million-dollar question is, if you have inverse salt sensitivity, should you just load up with salt in the diet? There's very little research on these folks to understand the long-term consequences of each choice,
it's probably true that these people don't need to be as strict as everybody else. But one thing to bear in mind is that there are other consequences, other conditions that are linked to excessive salt intake
beyond high blood pressure and cardiovascular disease. For example, the risk of stomach cancer goes up as well. Okay, let's talk about some key mechanisms to lower blood pressure that are natural,
that are usually not talked about much because sodium and salt is the main thing we hear about. So let's go over the five main ones real quick. And these work in general for most people, but they're especially interesting for people with inverse salt sensitivity. So one key nutrient
when it comes to blood pressure regulation is magnesium Magnesium supports nitric oxide production in your endothelium that the lining inside the arteries so that helps you relax your blood vessels and the
blood pressure comes down. And magnesium is present in a lot of healthy foods, but it's very often under-consumed in our society. The top most concentrated food in magnesium is actually
pumpkin seeds, and then hemp seeds and cacao powder are two of the other really concentrated sources. Chia seeds and black beans are other good sources of magnesium as well. Okay, next
powerful trigger to regulate blood pressure is potassium. Potassium is a fascinating mechanism. It signals your kidney to excrete, to get rid of more sodium. So this works in general for most
people. This has been shown in randomized trials. Increasing potassium in your diet helps lower blood pressure. But this could be particularly interesting for people with inverse salt sensitivity, because remember, the problem there may be that they hold on to too much sodium,
right? So if potassium counters that, it could be a great strategy. That hasn't been shown scientifically. Again, we have very little research, unfortunately, on inverse salt sensitivity people. But this is something I would 100% test if I was in those shoes. The most concentrated
source of potassium. A lot of people don't know this, are green vegetables. Beet greens are swift-charge. Beans and fruit are good sources as well. It's funny that if you ask people, what has potassium? Everybody says banana. A medium banana has about 400 milligrams of potassium,
but the same mass, the same weight of cooked beet greens has about 900. Okay, next trigger. One common question and one thing that comes up a lot when we talk about blood pressure is insulin. A lot of people ask, is insulin a trigger? Is it a cause of hypertension? And we
know that when we lose weight, our insulin levels consistently drop, especially fasting insulin. So it could be that insulin is one of the mechanisms, one of the reasons that weight loss is so powerful
at bringing down blood pressure. Because insulin can also signal to the kidney to hold on to more sodium. So, just like we saw with potassium, weight loss works in general. It's been shown
in randomized trials, very powerful, but it could be particularly interesting, particularly effective for people with inverse salt sensitivity. Okay, the last two triggers real quick. One is reducing alcohol intake. Randomized trials have shown a drop of about five points
millimeters mercury of your systolic blood pressure when alcohol intake is reduced. However, this is seen in people who regularly consume substantial amounts, more than two drinks a day, which is pretty substantial. If your intake of alcohol is more modest, you might not see
as big a drop. And finally, improving sleep quality and reducing your stress levels also seem to help reduce blood pressure. There's some promising data there. And we covered all the tips and tricks to naturally improve your sleep in this previous video, so check that out,
and I'll see you in there.