The Nutritional Value of Muscle Meats
Lean muscle meats are rich in protein, zinc, vitamin B12, iron and choline. Protein is a very important compound in physiology and is vital to life. Animal meat is one of the best sources of complete protein with the full array of amino acids. The amino acid makeup of muscle meats is very high in tryptophan and methionine and very low in glycine (
5).
Organ meats and bone broth protein are the opposite in that they are high in glycine but low in methionine. A diet high in muscle meats, but low in bone broth and organ meats will cause an improper methionine to glycine ratio. This imbalance depletes the body of B vitamins and trace minerals.
High methionine and tryptophan can interfere with B6 absorption and drain the body of its reserves of other key methylating agents such as riboflavin (B2),
folate, zinc and
B12. This can lead to an increase inflammation, altered genetic experession and poor detoxification.
Methionine is a precurser to
homocysteine and the more methionine we get in our diet, the more homocysteine our body would have the ability to produce (
6). Homocysteine is an inflammatory protein that is associated with cardiovascular disease, stroke and diabetes when it’s levels are above 6.3 umol/L (
7).
The Amino Acid Imbalances:
Let’s do a quick run through on the amino acid imbalances involved with eating a diet high in muscle meats and low in cartilaginous regions of animals. These imbalances have negative health consequences associated with them.
Elevated Methionine: Glycine ratio
Glycine is very important for phase II liver detoxification. Excessive An elevated methionine: glycine ratio can lead to elevated homocysteine levels and poor liver detoxification. Glycine is also an anti-inflammatory compound so low levels would increase whole body inflammation (
9).
Glycine also binds to glycine receptors in the spinal cord where it calms down the nervous system and reduces anxiety, irritability and insomnia (
10).
Elevated Tryptophan: Glycine ratio
Chronically elevated tryptophan to glycine ratios can cause an overproduction of
serotonin and melatonin after eating. This can lead to drowsiness and fatigue. It can also cause agitation and restlessness as well as heart arrhythmias (
11).
Incorporating the gelatinous regions of the body including the bone broth, skin, tendons, ligaments, discs and bone marrow as well as organ meats helps provide nutrient balance and synergy.