Grass Fed Beef can Boost Testosterone and Lower Cholesterol
lean beef steakModerate consumption of lean cuts of organic grass-fed beef is an excellent source of protein and vitamin B12.

Scientific evidence is accumulating that meat itself is not a risk factor for Western lifestyle diseases such as cardiovascular disease, but rather the risk stems from the excessive fat and particularly saturated fat associated with the meat of modern domesticated animals.

Studies have however strongly associated excessive red meat consumption with cardiac disease risk. High fat, grilled, pan-fried, charbroiled and processed meat are also associated with cancer risk. Both excessive red and processed meat intakes have been positively associated with cancers of the colorectum and lung

Heterocyclic amines (HAs) are carcinogens formed during the cooking of meat at moderate to high temperatures.

Commercially raised animals are fed growth stimulating hormones, antibiotics and processed grains, usually genetically modified (GM) corn that has been sprayed with pesticides.

Data published by the American Institute for Cancer Research and the World Cancer Research recommend no more than 80g (2.8 ounces) of meat should be consumed daily, preferably fish or poultry, and limited amounts that are cured or smoked.

In addition to the health hazards, excessive meat consumption is placing a strain on land and water resources, contributing to water pollution, and aggravating global warming.

The ecological impact of meat production includes forest destruction in Central and South America, elimination of competitive predators in the United States, and waste produced by livestock and poultry threatening rivers and lakes. The waste generated by livestock in the United States is 130 times that produced by humans, and the meat industry is the largest source of emissions of methane, a greenhouse gas contributing to ozone depletion and climate change.

In order to maximize the health benefits of eating beef, it’s strongly advised to choose free range, grass fed, organic, lean cuts, and to consume red meat in moderation. One such supplier of free range, grass feed beef is La Cense Beef, unfortunately not certified organic, but they have a convenient online ordering facility.

Health Benefits of Grass Fed Lean Beef

  • Nutrients
    Beef is an excellent source of protein and vitamin B12. It’s a very good source of zinc and selenium. It’s a good source of riboflavin, vitamin B6, niacin, iron, and phosphorus.
  • Testosterone
    While the protein and zinc in organic grass-fed beef will help in maintaining optimum testosterone levels in men, the hormones used in industrial beef will increase estrogen production and lower testosterone levels. Diets low in protein in elderly men may lead to elevated sex hormone-binding globulin (SHBG) levels and decreased testosterone bioactivity. Zinc deficiency is associated with decreased serum testosterone levels. The decrease in bioavailable testosterone can result in declines in sexual function and muscle and red cell mass, and contribute to the loss of bone density.
  • Cholesterol
    Substantial evidence from recent studies shows that grass fed lean red meat trimmed of visible fat does not raise total blood cholesterol and LDL-cholesterol levels. In one study of 191 individuals with hypercholesterolemia (high blood cholesterol) who were instructed to consume at least 80% of their meat in the form of lean red meat (LRM) or lean white meat (LWM), the LRM or LWM diet produced similar reductions in low-density lipoprotein (LDL) cholesterol and elevations in high-density lipoprotein (HDL) cholesterol levels, which were maintained throughout 36 weeks of treatment.
  • Cancer
    Grass-fed beef has higher concentrations of conjugated linoleic acids (CLA), which are fatty acids believed to decrease cancer risk.
  • Heart Health
    Grass-fed beef is higher in Omega-3 fatty acids, which have been found to reduce risk of heart disease. Only grass-fed beef is recommended by Food Standard Australia and New Zealand for beef to be considered a source of omega-3 fatty acids.
  • Weight Loss
    The conjugated linoleic acids (CLA) in grass-fed beef may help people maintain a healthy weight.
Nutrient Values of Grass-Fed Lean Beef Steak per 100g
Calories
117kcal
Energy Value
488kj
Total Fat
2.69g
Carbohydrates
0.00g
Sugars
0.00g
Dietary Fiber
0.00g
Protein
23.07g
Sodium
55mg
Zinc
3.61mg
Potassium
342mg
Iron
1.85mg
Magnesium
23mg
Copper
0.068mg
Calcium
9mg
Vitamin C
0.0mg
Vitamin E
0.22mg
Vit. B3 (Niacin)
6.703mg
Vitamin B6
0.651mg
Vit. B1 (Thiamin)
0.052mg
Vit. B2 (Riboflavin)
0.124mg
1. A diet high in processed meats may increase the risk of type 2 diabetes in women.
2. Beef contains small amounts of oxalates, and individuals with a history of oxalate kidney stones should limit their consumption of beef.
3. Heme-iron intake from red meat sources is positively associated with the risk of type 2 diabetes, and consumption of this food should be limited.
4. Beef contains purines, which be broken down to form uric acid, and individuals with gout should avoid beef or limit their consumption of it.
References:
1. The Encyclopedia of Healing Foods by Michael Murray, Joseph Pizzorno, and Lara Pizzorno.
2. Benders' Dictionary of Nutrition and Food Technology.
3. USDA National Nutrient Database for Standard Reference.
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5. Li D, Siriamornpun S, Wahlqvist ML, Mann NJ, Sinclair AJ. Lean meat and heart health. Asia Pac J Clin Nutr. 2005;14(2):113-9. PMID: 15927927.
6. Dietary lean red meat and human evolution. Eur J Nutr. 2000 Apr;39(2):71-9. PMID: 10918988.
7. Fung TT, Schulze M, Manson JE, Willett WC, Hu FB. Dietary patterns, meat intake, and the risk of type 2 diabetes in women. Arch Intern Med. 2004 Nov 8;164(20):2235-40. PMID: 15534160.
8. Harris WS, Sands SA, Windsor SL, Ali HA, Stevens TL, Magalski A, Porter CB, Borkon AM. Omega-3 fatty acids in cardiac biopsies from heart transplantation patients: correlation with erythrocytes and response to supplementation. Circulation. 2004 Sep 21;110(12):1645-9. Epub 2004 Sep 7. PMID: 15353491.
9. Jiang R, Ma J, Ascherio A, Stampfer MJ, Willett WC, Hu FB. Dietary iron intake and blood donations in relation to risk of type 2 diabetes in men: a prospective cohort study. PMID: 14684399.
10. Longcope C, Feldman HA, McKinlay JB, Araujo AB. Diet and sex hormone-binding globulin. J Clin Endocrinol Metab. 2000 Jan;85(1):293-6. PMID: 10634401.
11. Prasad AS. Zinc in human health: effect of zinc on immune cells. Mol Med. 2008 May-Jun;14(5-6):353-7. PMID: 18385818.
12. Image by yongfook.
 

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