343 ND Fat or Carbs: Which Is the Body's Preferred Fuel Source

343 ND Fat or Carbs: Which Is the Body's Pref...

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Vitamin K2: Is a supplement a good idea?

876. There's no vitamin F or G. After E, we jump straight to K, and that quirk is a hint that this nutrient is more complicated than it looks. Vitamin K isn't one thing. It's a whole family of compounds -- K1, K2, MK-4, MK-7 -- that come from different sources and do completely d ...  Show more

Touching GRAS: What 'generally recognized as safe' really means

On a road trip, tackling a summer cleanup, or just catching up on podcasts? QDT has you covered with Summer Saturday encores from your favorite shows. See the full Summer Saturday lineup on Spotify and enjoy this episode, which first aired in November 2025.838. Are manufacturers ...  Show more

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