Bone Broth, made from the bones of animals, has been consumed as a source of nourishment for humankind throughout the ages. It is a traditional remedy across cultures for the sick and weak. A classic folk treatment for colds and flu, it has also been used historically for ailments that affect connective tissues such as the gastrointestinal tract, the joints, the skin, the lungs, the muscles and the blood. Broth is a valuable food and a valuable medicine. Broth will contain the ingredients that are in bone and cartilage. It is the valuable nutrients from the matrixes of bone and cartilage, which create the substance called broth. These nutrients include: protein, calcium, phosphorus, magnesium, sulfur, fluoride, sodium, potassium, chondroitin sulfate, keratin sulfate, hyaluronic acid, glycine, proline, hydroxyproline, lysine, hydroxylysine
Minerals have three major functions in the body. They provide a structural base for connective tissue like bone. They create electrical potentials allowing for conduction of nerve signals and movement across cell membranes. They act as catalysts for enzymes in physiologic processes. Minerals are essential to life but they are not easy to digest. In the stomach, the presence of hydrochloric acid is necessary to physically break down our food, but also to extract elemental minerals from the food that we’ve eaten. A similar reaction takes place in the making of broth. An acid is necessary to remove the minerals from the bone. This is the purpose of using vinegar (acetic acid) when making broth.
Deficiencies of minerals can be acquired, similar to vitamin deficiencies. Generally there are two ways this can happen, lack of intake in the diet, or lack of absorption in the intestines. Broth can be an excellent remedy for both of these causes of mineral deficiency because it provides easily absorbed extracted minerals, plus promotes healing of the intestinal tract. Unlike vitamins, minerals do not have defining deficiency diseases, but rather a collection of associated deficiency signs, symptoms and diseases. Interestingly, many of the deficiency symptoms of minerals are mood and behavior disturbances. This offers a scientific explanation for broth’s ability to soothe and stabilize. It is reasonable to assume that previous to the development of pharmaceutical mineral supplements, bone broth was an important supply of minerals, especially in the winter when fresh fruit and vegetables are less available, and warm food is preferred. After cooking, the broth will cool and a layer of fat will harden on top. This layer protects the broth beneath. Discard this layer only when you are about to eat the broth.
Resources: How to make Bone Broth:
Making Fresh Bone Stock from Paleo Diet Life Style
Caveman Cuisine Bone Broth by Tony Federico of FED – Fitness in an Evolutionary Direction
Easy Recipe: Mineral-Rich Bone Broth Written by Diane Sanfilippo, Balanced Bites 
How to Make Beautiful BrothBy Joanne Hay, Nourished Magazine 
Very healing and repairing to the GI tract
Making home made infant formula for babies sensitive to dairy formula :http://foodforkidshealth.com/making-home-made-infant-formula-for-babies-sensitive-to-dairy-formula/
Resources for Making Chicken and Turkey Bone Broth
1) Video: Intro to Stocks and Bone Broths by Sarah Pope http://www.westonaprice.org/beginner-videos/stocks-and-soups-video-by-sarah-pope
2) Article: Making Perpetual Bone Broth in Your Slow-Cooker by Jenny McGruthers http://nourishedkitchen.com/perpetual-soup-the-easiest-bone-broth-youll-make/
3) Video: The perfect simmer on your bone broth stock http://www.thehealthyhomeeconomist.com/video-the-perfect-simmer-on-your-stock
4) Article: How to get more natural gelatin in your chicken bone broth stock http://www.thehealthyhomeeconomist.com/the-wonders-of-gelatin-and-how-to-get-more-in-your-stock/
5) Video: Making Turkey Bone Broth from leftover turkey bones http://www.thehealthyhomeeconomist.com/how-to-make-soup-stock-from-leftover/
Making Fish stock and fish bone broth
1) Video: How to make Fish Stock and Fish Bone Broth http://www.thehealthyhomeeconomist.com/video-making-fish-stock/
2) Article: Using Fish Stock for Physical Fitness http://www.thehealthyhomeeconomist.com/optimal-foods-for-physical-fitness-plus-3-recipes/
Videos: Making Beef Bone Stock
1) Video by AnnMarie Michaels http://www.cheeseslave.com/beef-stock/
2) Videos by Monica Corrado http://www.monkeysee.com/play/912-beef-stock-preparing-the-bones
Weston A. Price links: http://www.westonaprice.org/food-features/broth-is-beautiful
Other: http://balancedbites.com/2011/04/easy-recipe-mineral-rich-bone-broth.html http://theprimalparent.com/2012/03/20/how-to-make-collagen-bone-broth/ http://bellatrixnutrition.wordpress.com/2012/07/15/your-ultimate-bone-broth-resource/
from Weston A. Price: Broth is Beautiful Written by Sally Fallon 
Why Broth is Beautiful: Essential Roles for Proline, Glycine and Gelatin Written by Kaayla T. Daniel 
Other Bone Broth articles:
Can Food be Medicine part 1 by Vanessa, Healthy Living How To
Making Medicine part 2 by Vanessa, Healthy Living How To
How bone broths support your adrenals, bones and teeth Written by OraWellness, guest post on Nourished Kitchen
Bone Broth: Heal Your Gut and Lose Cellulite! by Donna Gates, Body Ecology The nutritional benefits of bone broth:
http://www.soaringcraneclinic.com/Bone_Broth.pdf The Day After Thanksgiving Turkey Bone Broth: It’s ROASTED TURKEY STOCK day! Break entire turkey carcass into pieces on baking dish with quartered onion (skin on), 3 ribs of celery coarsely chopped, 2 carrots washed, not peeled in 2″ pieces, and some fresh ground pepper. 400 degrees-until very brown (1 hr). Scrape into a large pot with cold water (enough to just cover ingredients). Cover pot, bring to boil, lower heat and simmer 2hrs minimum. Strain. Use or freeze. Don’t salt until you add stock to your other recipes!
- “Gelatin treats ulcer.” Medical News Today. Aug 22 2006. http://www.medicalnewstoday.com/releases/50126.php
- Wald, A and Adibi, SA, Stimulation of gastric acid secretion by glycine and related oligopeptides in humans, American Journal of Physiology, 1982, 5, 242, G86-G88.
- JD, Schulzke. Therapeutic options to modulate barrier defects in inflammatory bowel disease. Dig Dis. 2009;27(4):450-4. Epub 2009 Nov 4.
- Russell, A. L. “Glycoaminoglycan (GAG) deficiency in protective barrier as an underlying, primary cause of ulcerative colitis, Crohn’s disease interstitial cystitis and possibly Reiter’s syndrome.”Medical Hypotheses. April 1999 Vol. 52; 4. P 297-301.
- Shanahan MD, Catherine (2011-04-22). Deep Nutrition: Why Your Genes Need Traditional Food. Big Box Books. Kindle Edition.
- Glycine ingestion improves subjective sleep quality in human volunteers, correlating with polysomnographic changes. Sleep and Biological Rhythms. April 2007. Vol 5;2. P 126–131.