Hi Dr Serge, my sister asked me if creatine is good for older people. What’s your take on it? Thanks!

Modern vitamins and supplements are a MASSIVE, TOXIC scam. Almost every vitamin on the market is sourced from China and made by fermenting bacteria with sewer sludge, metals, corn syrup, and other garbage. And that is not an exaggeration... - B12 is made by fermenting GMO bacteria with corn syrup, cyanide, and cobalt. - B1 is made from coal tar and ammonia. - Folate comes from petroleum byproducts. - Omega-3s? Rancid. - Multivitamins? Chemical industry leftovers. - Vitamin Cs have ascorbic acid. Synthetic vitamins are a massive scam and do not contain the energy of the real thing. The word “vitamin” didn’t even exist before the 20th century. Pharma just isolated, patented, and manufactured them, turning them into a billion-dollar product no one can actually verify. Today, we don’t even know if these synthetic versions match the nutrients found in real food. Whole-food vitamin C comes from real fruits like golden kiwis, oranges, and pineapples, etc., which gives a complete vitamin C complex and not just isolated ascorbic acid. Ascorbic acid is only the outer shell of the vitamin C molecule, which is why synthetic versions often fail to deliver tangible benefits (see picture below). Whole-food vitamin C includes bioflavonoids, cofactors, and enzymes that your body needs actually to absorb and use it. It’s the form nature designed… not the one cooked up in a chemical vat. So if you are taking vitamins, make sure they are from foods. That is why we like to use supplements from Standard Process, Systemic Formulas, Doctor's Research, etc., because they are from foods.

Standard vitamin D supplementation hasn't shown much benefit for heart health in previous studies, but new research from Intermountain Health demonstrates why: we've been approaching it wrong. In the TARGET-D trial of 630 heart attack survivors, researchers used a personalized approach, monitoring blood levels and adjusting doses to reach optimal vitamin D levels above 40 ng/mL. This strategy cut the risk of a second heart attack by 50%. More than half of those receiving targeted therapy required initial doses of 5,000 IU daily, far higher than typical recommendations of 600 to 800 IU, and their levels were checked every three months until reaching target. Importantly, no adverse outcomes were observed even with higher doses.

A new study suggests vitamin D might earn that title. Researchers found that vitamin D regulates a suite of genes linked to inflammation, oxidative stress, and cellular aging—three major drivers of chronic disease and biological decline. In both human and animal models, higher vitamin D levels were associated with reduced epigenetic aging markers and greater expression of protective genes that keep tissues youthful and resilient. Of course, correlation doesn't mean causation, and more studies are needed to confirm these effects over time. But the mechanisms make sense: vitamin D is involved in everything from mitochondrial function to immune modulation. Given that most people have suboptimal levels, maintaining adequate vitamin D could be a low-risk, high-reward way to support healthy aging—especially when paired with other lifestyle interventions like sleep, movement, and a nutrient-dense diet.