Health Claims

In young adults—even those with mild obesity or well-controlled type 1 diabetes—how blood flows in small muscle vessels and triglyceride levels help predict how well the body uses insulin to process sugar, showing that both blood vessel health and fat levels matter for insulin sensitivity.

Correlational

In young adults who are lean, mildly overweight, or have well-controlled type 1 diabetes, things like BMI or fat levels don’t predict how well insulin improves blood flow in muscles—even though they do predict how well the body uses sugar overall.

Correlational

In young adults, including those who are lean, mildly obese, or have well-controlled type 1 diabetes, fitness level (measured by oxygen use) is linked to how well their body handles sugar and blood flow in muscles, but it doesn’t add extra predictive power once other factors are considered.

Correlational

In healthy young adults and those with mild obesity or well-controlled type 1 diabetes, how well their body uses insulin to process sugar is linked to how well insulin improves blood flow in their muscles — and this connection stands on its own, even when other factors are considered.

Correlational

Taking magnesium with creatine might help endurance athletes get stronger muscle power, like how hard you can push or pull at your peak.

Causal

If you're an endurance athlete, taking magnesium-creatine might help your muscles hold more water, which could mean better creatine absorption and possibly help your muscles grow or recover faster.

Mechanistic

In young, healthy guys recovering from intense workouts, taking creatine doesn’t seem to change muscle swelling or stress signals — which means the boost in muscle fuel recovery probably isn’t due to those factors.

Mechanistic

In young, healthy guys, creatine helps refill muscle energy after intense exercise, but it doesn’t work by making muscles more sensitive to insulin — that part hasn’t changed, according to tests and gene activity.

Mechanistic

Creatine helps muscles refill their energy stores quickly after a tough workout, but this boost only lasts the first day — even if you keep taking creatine, it doesn’t keep speeding things up after that.

Mechanistic

If young, healthy guys take a lot of creatine with a high-carb diet after a tough workout, their muscles store more creatine within just a few days — and it keeps going up the longer they take it.

Quantitative

If young, healthy guys take 20 grams of creatine every day while eating a super high-carb diet after intense exercise, they rebuild their muscle fuel 82% faster in the first day compared to just eating high carbs alone.

Quantitative

Taking creatine for a week might change genes in young men's muscles that help reshape the muscle structure, possibly because the muscle cells are holding more water.

Mechanistic

Taking creatine for a short time might turn on genes in young men's muscles that help fix DNA, possibly because the cells are reacting to the stress from holding more water.

Mechanistic

Taking creatine for 10 days might turn on a gene in young men's muscles that helps muscle cells grow and stay alive.

Mechanistic

Taking creatine for just a week can turn on important muscle cell signals that help with growth and energy use in young, healthy guys.

Mechanistic

Taking creatine for just a week can make young, healthy guys gain a little weight and look more muscular—even if they don’t work out, mostly because of water holding in their muscles.

Causal

When a certain protein in human muscle cells is blocked, insulin can't turn on or move a key cellular pump that helps muscles work properly.

Mechanistic

When insulin acts on human muscle cells, it turns on a switch (ERK1/2) that helps modify a specific protein (the sodium-potassium pump) at certain spots—this has been seen in lab tests using drugs and purified enzymes.

Mechanistic

Insulin helps move certain proteins to the surface of human muscle cells and boosts their activity, and this seems to involve a specific cellular signaling process.

Mechanistic

Insulin can boost a tiny cellular pump in frog muscle cells, but only when the salt and energy levels are just right — it doesn’t work all the time, just in specific situations.

Mechanistic

Insulin helps a cellular pump work better when fuel levels are low, but doesn’t make it go faster when everything’s already maxed out — it’s like giving the pump a sensitivity boost, not a power upgrade.

Mechanistic

Insulin doesn't boost the pump activity in frog muscle cells when it's already running at full speed, which suggests insulin helps the pump respond better to signals instead of making it work harder.

Mechanistic

Insulin boosts a specific cellular pump in frog muscle cells, but this boost gets completely stopped by a chemical called ouabain — meaning insulin only affects that particular pump, not others.

Mechanistic

Insulin can boost a tiny cellular pump in frog muscle cells, and it works way better when certain conditions like low salt or energy levels are present.

Mechanistic