AnemiaMar 16, 2026
Most multivitamins with iron sold off the shelf contain around 10 to 15 mg of elemental iron. That's enough to check a box on the label, but research consistently shows it falls short of the 30 to 60 mg range typically needed to prevent deficiency in people who actually need iron, like pregnant women and those who menstruate heavily. The twist: when iron is paired with the right vitamins, you may not need as much as you'd think. Studies show that a multivitamin delivering just 24 to 30 mg of iron can match the anemia-prevention power of 60+ mg of iron taken alone.
That creates a practical gap worth understanding. The research points to a sweet spot where combining iron with other nutrients gets you more from less, but the average product on the market doesn't even reach that sweet spot.
NutrientsMar 16, 2026
TMG, often marketed as the "TMG amino acid," is one of the most misunderstood supplements on the shelf. It's not a protein-building amino acid at all. It's a trimethylated derivative of glycine that serves as an osmolyte and one of your body's key methyl donors, helping convert the potentially harmful molecule homocysteine back into the useful amino acid methionine.
That methyl-donating role is what makes TMG genuinely interesting. But there's a complication worth knowing about: gut bacteria can also convert TMG into trimethylamine (TMA), which your liver then oxidizes into TMAO, a molecule associated with cardiovascular, renal, and metabolic diseases. Whether TMG tips toward benefit or risk likely depends on your gut microbiota, how much you take, and what else you eat.
CreatineMar 16, 2026
A 21-day trial that directly compared creatine in a gelled candy form against creatine powder found zero differences in strength gains or fat-free mass. Both forms beat placebo. Your muscles don't care what the creatine arrived in. They care how much showed up.
That finding holds across broader reviews, too. When the dose of actual creatine is matched, no delivery format, and no "novel" creatine formulation, has ever consistently outperformed plain creatine monohydrate powder. The real question with gummies isn't whether they work. It's whether they make it quietly harder to take enough.
Lactose IntoleranceMar 16, 2026
Most lactose-intolerant adults can tolerate about 12 grams of lactose, roughly one cup of milk, without any pill at all, especially when consumed with food. Lactase enzyme supplements perform best at exactly these moderate doses (12 to 25 grams, or about one to two cups of milk) and become less reliable as lactose intake climbs higher. That creates a practical paradox: the pills are most effective in the range where many people already manage fine, and least reliable when you're pushing past your natural threshold.
That doesn't make them useless. It means they're a tool for expanding your comfort zone with dairy, not a free pass to eat unlimited ice cream.
