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Thomas DeLauer - Best and Worst Protein Sources (ranked by science)

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Short Summary

Main recommendation: Prioritize whole-food and minimally processed protein sources such as eggs, venison, ground beef, ribeye, milk protein, and whey protein isolate or concentrate, while limiting bacon, farm-raised tilapia, and nut butters as protein sources. The video ranks proteins by DIAAS score (how well a protein digests and is absorbed), vitamin and mineral content, taste, and amino acid completeness. It also cautions that protein-boosted products can add little real protein value.

Key Points

  • Eggs are presented as a top overall pick: a strong multivitamin source (vitamins A, D, E, K), high choline for brain support, and mostly monounsaturated fat.
  • Venison is ranked as the best red meat option, with high creatine, low fat, a better calorie-to-protein ratio, and a fatty acid profile the speaker says is better than conventionally raised meat.
  • Whey protein concentrate is credited with a DIAAS score of 133, higher than whey isolate at 125, because its whole-food matrix (including milk solids) may aid absorption.
  • Milk protein, combining casein and whey, is described as one of the most complete and highly digestible protein sources, though sugary milk drinks are not recommended as a way to get it.
  • Protein sources treated as fat sources rather than protein sources include bacon, nut butters, and, with caveats, ground turkey and tilapia.
  • Soy protein, with a DIAAS score around 98 and low leucine, is ranked below other options, even for plant-based eaters.

Details Worth Noting

  • Concrete instructions:
    • Choose sardines packed in water or olive oil, not soybean oil, and prefer ones with bones and skin for vitamin D and calcium.
    • Choose cottage cheese without carrageenan.
    • Choose 100% beef or 100% turkey hot dogs, preferably beef, rather than mixed "mash-mix" hot dogs.
    • Choose tuna labeled chunk light rather than albacore, and do not eat tuna every day.
    • For ribeye, trim fat carefully, since a thicker fat cap can raise calories substantially (for example, 200 vs. 300 calories at the same weight).
    • Choose milk protein drinks or protein powders with fewer additives; Fairlife Core Power is described as acceptable only in a pinch because of artificial sweeteners, thickeners, emulsifiers, and carrageenan.
    • Use bone broth for gut and collagen benefits, but do not count it toward protein intake.
    • Choose Icelandic skyr, which the speaker says has a higher protein-to-fat ratio and a texture like full-fat Greek yogurt even at zero fat.
  • Creatine: the speaker mentions a creatine brand (Create) with gummies sweetened with allulose and stick packs using Creapure; the video says a discount link is in the description, and that gummies should not be eaten in large quantities.
  • Tuna mercury: recent evidence cited suggests selenium in tuna may help the liver process mercury, but the speaker still does not recommend daily tuna.
  • Health and nutrition claims are the speaker's opinions and research summaries, not professional medical advice.

Bottom Line

Whole-food sources with high digestibility and nutrient density, such as eggs, venison, and milk protein, rank highest, while processed or fat-heavy products should be treated as fat sources rather than reliable protein.

Facts

  1. In protein research, DIAAS scores measure how well a protein is digested and absorbed by the body.

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