The Field Journal

Notes From the Trailhead

Deep dives on animal-based nutrition, hormones, training, and eating like your great-grandfather.

Feb 22, 2026

Monk Fruit vs Stevia vs Sucralose: Protein Powder Sweeteners Compared

Monk fruit, stevia, and sucralose are the three dominant sweeteners in protein powders. All three are zero-calorie. All three are considered safe by regulatory agencies. But they taste different, affect...

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Feb 22, 2026

Egg White Protein: Benefits, Uses, and How It Compares

Egg white protein is a complete protein with a perfect 1.0 PDCAAS score, all nine essential amino acids, zero dairy, zero carbs, and zero fat. It was literally the original...

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Feb 22, 2026

Beef Testicle Supplement: Benefits, Research, and What to Expect

Beef testicle supplements — also called orchic extract or bovine orchic substance — are freeze-dried capsules of desiccated bull testicle. They provide zinc, selenium, B12, protein, and cholesterol (the precursor...

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Feb 22, 2026

Beef Liver Supplement Benefits: Why It's Nature's Multivitamin

Beef liver is the single most nutrient-dense food on the planet. One 3 oz serving delivers 2,944% of your daily B12, 731% of your vitamin A, and meaningful amounts of...

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Feb 22, 2026

Beef Organ Supplements: The Complete Guide to Nose-to-Tail Nutrition

Beef organ supplements pack the nutritional density of liver, heart, kidney, and spleen into capsules — delivering a broad-spectrum nutrient profile that no single-organ supplement or multivitamin can match. Each...

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Feb 22, 2026

Collagen Types Explained: Type I, II, and III (and Which You Need)

Your body contains 28 different types of collagen, but only three matter for supplementation. Type I makes up 90% of your body's collagen and provides structure to skin, bones, and...

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Feb 22, 2026

Bone Broth Collagen Benefits: What Research Actually Shows

Bone broth collagen provides glycine, proline, hydroxyproline, and glutamine — the amino acids your body uses to build and repair connective tissue, gut lining, and cartilage. The strongest evidence supports...

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Feb 22, 2026

Understanding Clean Protein Ingredients: What's in Your Powder?

Clean protein means a powder with whole-food-sourced ingredients, no artificial sweeteners, no fillers, and no synthetic additives. The cleanest protein powders use grass-fed beef protein isolate, egg white protein, bone...

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Feb 22, 2026

Keto Protein Powder: Best Low-Carb Options That Actually Work

A keto protein powder needs to deliver high protein with virtually zero carbs, zero sugar, and no hidden ingredients that spike insulin or kick you out of ketosis. Beef protein...

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Feb 22, 2026

Protein Powder and Inflammation: What Research Shows

Protein powder doesn't inherently cause inflammation. But the ingredients in most protein powders do. Dairy triggers inflammation in the 68% of adults who can't properly digest lactose. Artificial sweeteners disrupt...

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Feb 22, 2026

AIP Protein Powder: What's Safe for the Autoimmune Protocol

Most protein powders fail the autoimmune protocol before you even open the lid. Whey and casein are dairy. Pea and soy are legumes. Rice protein is a grain. And nearly...

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Feb 22, 2026

Carnivore Diet Supplements: The Complete Guide

The carnivore diet — eating exclusively animal products — provides complete protein, abundant B12, heme iron, zinc, and fat-soluble vitamins naturally. But muscle-meat-only carnivore has gaps. Electrolytes shift dramatically during...

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