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GAPS Diet and the risk of lead contamination in bone broth diets

The preparation and consumption of bone broth is being increasingly recommended to patients, for example as part of the gut and psychology syndrome (GAPS) diet for autism, attention-deficit hyperactivity disorder, dyslexia, dyspraxia, depression and schizophrenia, and as part of the paleolithic diet.

GAPS and lead contamination

Bones are known to sequester the heavy metal lead, contamination with which is widespread throughout the modern environment. Such sequestered lead can then be mobilised from the bones. 

Bone broth might carry a risk of being contaminated with lead.

A small, blinded, controlled study of lead concentrations in three different types of organic chicken broth showed that such broths do indeed contain several times the lead concentration of the water with which the broth is made.

In particular, broth made from skin and cartilage taken off the bone once the chicken had been cooked with the bones in situ, and chicken-bone broth, were both found to have markedly high lead concentrations, of 9.5 and 7.01 μg L(-1), respectively (compared with a control value for tap water treated in the same way of 0.89 μg L(-1)).

In view of the dangers of lead consumption to the human body, we recommend that doctors and nutritionists take the risk of lead contamination into consideration when advising patients about bone broth diets.

In addition, bone marrow is also very high in saturated fat.

Monro JA, Leon R, Puri BK. Med Hypotheses. 2013 Apr;80(4):389-90. doi: 10.1016/j.mehy.2012.12.026. Epub 2013 Jan 31.

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Coriolus PSP

trametes versicolor turkey tailCoriolus PSP is a special extract of the spores from the fungus Turkey tail. It’s botanical name is Trametes Versicolor (also known as Coriolus versicolor, or Kawaratake in Japanes, or Yun-Zhi in Chinese). The medicinal plant part is the fruiting body.

The active compounds are known as polysaccharide peptide (PSP) and polysaccharide krestin (PSK).

PSP and PSK have been investigated as adjuvant medicines during chemotherapy and radiation. Studies have found that these immune enhancing polysaccharides enhance quality of life of cancer patients.

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