Health Claims

Uric acid messes with blood vessel relaxation in human cells more than it affects blood vessel tightening, which might explain how it harms blood flow.

When doctors blocked a chemical called nitric oxide in healthy people, their hearts pumped less blood with each beat and overall, showing that this chemical helps keep the heart working normally when we're just resting.

In healthy people, a molecule called nitric oxide helps keep blood vessels in the lungs open and relaxed when oxygen levels are normal. When scientists blocked its production, the lung blood vessels became more resistant to blood flow, even though overall pressure didn’t change.

In healthy people, a substance in blood vessels called nitric oxide helps keep blood pressure and vessel tightness in check. When scientists blocked this substance, blood vessels tightened up and blood pressure went up, showing how important it is for keeping things normal.

In male lab rats with high blood pressure caused by a steroid, taking a drug called minoxidil seems to make their hearts pump more blood with each beat—without changing how fast the heart beats—meaning the heart might be filling better or squeezing harder.

Giving male lab rats a specific dose of a steroid called dexamethasone for about two weeks slows down their weight gain and shrinks their thymus gland, which shows the drug is having a strong effect on their body even if they don’t lose weight overall.

In male lab rats, taking minoxidil and dexamethasone together lowers blood vessel resistance and boosts heart performance, but it doesn’t stop blood pressure from going up — meaning just relaxing blood vessels might not be enough to fix steroid-linked high blood pressure.

In male lab rats given a drug that raises blood pressure, the overall increase in blood vessel resistance isn't due to major changes in key organ areas — so the problem might be spread across many tiny, unmeasured blood vessels instead.

In male lab rats, giving a steroid called dexamethasone for about two weeks raises their blood pressure because their blood vessels get tighter — not because their heart pumps harder.

In dogs with most of their kidney removed, having high insulin levels didn’t make blood pressure go up any more when they were also given a blood-pressure-raising hormone — even though that hormone had already raised their blood pressure a bit on its own.

In dogs with badly damaged kidneys and a salty diet, giving insulin for a month boosts kidney filtering power without affecting key blood pressure hormones, suggesting insulin helps kidneys adapt on its own.

In dogs with damaged kidneys and eating a lot of salt, pumping extra insulin into their blood for almost a month doesn’t raise their blood pressure — it stays normal, even though insulin levels go way up.

Mice on a high-fat diet hold onto more salt because their kidneys are reabsorbing more of it through a specific pathway—this was shown by giving them a water pill and seeing they flushed out way more salt than mice on a low-fat diet.

Mice that had their insulin receptors turned off in kidney tubes didn’t get as high blood pressure when given a hormone that usually raises it — suggesting insulin in the kidneys might play a role in blood pressure control when the body has trouble using insulin properly.

When scientists turned off insulin's signal in the kidney tubes of obese, insulin-resistant mice, the mice didn't hold onto salt as much — showing that insulin in the kidneys helps control salt balance in obesity.

In fat mice that don't respond well to insulin, giving a hormone-like drug called fludrocortisone reveals that insulin receptors in the kidney play a role in controlling blood pressure and blood sugar — but only when that hormone signal is turned up.

In mice on a high-fat diet, turning off insulin's signal in the kidney doesn't change blood pressure or salt balance — meaning insulin in the kidney might not be needed to hold onto salt when obesity is caused just by diet.

In mice with obesity and insulin issues, turning off insulin signals in the kidney led to about half as much of a certain protein (SGLT2) that helps control sugar reabsorption — especially when they were given a hormone that affects salt balance. This suggests insulin helps keep this protein working in the kidneys.

When scientists turned off insulin's signal in the kidneys of obese, insulin-resistant mice on a certain hormone, the mice started spilling a lot of sugar in their urine—way more than normal—showing that insulin in the kidneys helps control how much sugar gets reabsorbed.

In mice with obesity and high blood pressure caused by a hormone called fludrocortisone, turning off the insulin receptor in the kidney's tubules only slightly lowers blood pressure—by about 2.3 points—suggesting insulin in the kidneys plays a small role in raising blood pressure here.

In people with metabolic syndrome who eat a lot of salt, certain gut bacteria are linked to worse insulin resistance, and another type is linked to lower levels of a hormone that helps control blood sugar — pointing to a possible gut connection between salt and metabolic health.

If women with metabolic syndrome regularly eat a lot of salt—like 2400 mg or more a day—they might have more trouble managing their blood sugar, according to this claim. It’s like their bodies don’t respond as well to insulin, and this could be especially true for women.

If you're an adult with metabolic syndrome and you regularly eat a lot of salt, your body might have trouble managing blood sugar because a key gut hormone doesn't respond the way it should after meals.

If you eat fiber or protein before carbs, your blood sugar spikes less after meals — and this helps both healthy people and those with type 2 diabetes, though the effect might be stronger in one group than the other.