Let’s first clarify that meal replacement shakes are not to be confused with protein shakes, though the differences are nit-picky: a meal replacement shake typically has between 200-500 calories and tick off a bunch of nutritional checkmarks with added vitamins, minerals, fiber, and some protein.
Please be careful with shakes, powders, and the like. The regulation on the supplement industry is pretty much nonexistent. The best case scenario is that the company does not include the ingredient listed in its advertising, but there are numerous instances of customers sending out their powders for testing and finding harmful ingredients.
Diet tracking tools often include data about the vitamins and minerals you are (or aren’t) getting. While it’s fine to use that as motivation to eat a few extra veggies, you shouldn’t jump to the conclusion that you have a vitamin deficiency or need megadose supplements. Here’s why.
The part about the Reference Daily Intake (RDI) points out that though I mention the Daily Value (DV) when talking about how much vitamin K is in a given food, that value might be more (or less) than you need or want.
Wandering into any conversation about vitamins and other health supplements is wandering into a thicket of hyperbole and half-truths. We’re here to cut through some of the bullshit in the $28 billion supplements industry.
The biggest fallacy we need to let go of is that all vitamins are good, and more vitamins is always better. Vitamins are potent chemicals packed in potent pills.
…It’s also worth noting, the quality of supplement products varies greatly from brand to brand. Not only can the amount of active ingredient differ from the label, but adulterants can also be sneaked in. If you’re wondering if your (expensive) brand is up to snuff, Consumer Labs regularly publishes tests comparing the quality of different brands. Pro tip: More expensive is not always better.