Beef

Beef and other muscle meats are not an ideal source of protein because they provide an excess of several factors that support degenerative processes. Peat argued that red muscle meats contain too much iron, phosphate, tryptophan, and other excitatory amino acids, and that everything it provides too much of tends to support cancer development and degenerative processes. 1 He specifically identified the amino acids methionine, cysteine, and tryptophan as correlating with aging, inflammation, and loss of thyroid function. 1 The heme iron in beef also has toxic effects, forming carbon monoxide apart from the iron itself. 2

The fundamental problem with muscle meat is that its amino acid profile directly suppresses thyroid function. Peat explained that when the body resorts to cortisone and destroys its own muscles, the muscle dissolution entering the bloodstream suppresses the thyroid; eating a simple steak or hamburger mimics this stress state because the body cannot tell the difference between stress and eating simple meat. 9 Dinkov has elaborated that tryptophan is the only amino acid that is directly carcinogenic, and that methionine acts as a potent anti-thyroid chemical, with human studies showing that drastic methionine restriction causes the metabolic rate to climb. 4 These inflammatory amino acids are also GABA antagonists, putting the brain into a state of excitotoxicity if not balanced by anti-inflammatory amino acids. 8

The anti-inflammatory amino acids that oppose these effects—glycine, proline, and hydroxyproline—are found mostly in collagen, not in muscle meat. 4 Peat discovered that consuming several grams of gelatin before bedtime allowed him to sleep through the night without interruption, and friends reported relief from long-standing arthritic and rheumatic pain after taking 10 to 15 grams of gelatin daily. 5 Dinkov recommends consuming collagen in at least a one-to-one ratio with the sum of methionine, tryptophan, and cysteine from muscle meat to balance the inflammatory and anti-thyroid effects. 4 Ground beef, which includes connective tissue, skin, and other cheaper parts ground together, is actually healthier than pure muscle cuts like filet mignon because it contains more of this balancing collagen. 6

Beyond its amino acid composition, commercial beef carries additional toxic burdens from industrial production practices. Peat documented that animals are treated to maximize water retention before slaughter, with stress, fatigue, and excess estrogen causing tissues to swell hugely without increasing protein content. 3 Synthetic estrogens like DES were used for decades to cause massive water retention, and while DES was outlawed, other estrogens remain openly used. 3 The deliberate aging of meat—two or three weeks of cold storage—subjects it to a standardized stress that produces polyamines, which intensify the neurotoxic and carcinogenic effects of estrogen and polyunsaturated fats. 7 Peat noted that grass-fed organic beef fresh from a local farm would be a reasonable choice, as it avoids the maximized dangers of industrial processing. 7

When consuming beef, practical mitigation strategies include balancing it with gelatin, extra calcium, and iron-absorption inhibitors like coffee. 10 Roddy notes that when balanced with calcium and gelatin, muscle meats transcend their proinflammatory nature and can support metabolism. 10 Peat pointed to traditional preparations where stewing a whole chicken yields gelatin from the skin, bones, and connective tissues, providing about half the protein as a perfectly balanced set of amino acids—approximating what primitive cultures ate daily. 9 Shellfish like scallops, crab, and shrimp represent superior protein sources, being high in copper in relation to iron. 1