rBST Free Milk vs Organic Milk

By | February 5, 2020

If we talk about rBST, the actual name is recombinant Bovine Somatotrophin. This is a growth hormone that has been modified from normal BST growth hormone using recombinant DNA process so that cows injected with it can produce more milk than what would be considered in normal condition or daily, even for a dairy cow like a Holstein. We are going to talk about the types of milk which is coming from rBST Free Milk vs Organic Milk that people sometimes be confused with. Find the differences and similarities might be find the solving-problem.


There are some states and countries that do administer rBST to their dairy cattle. rBST, or recombinant bovine somatotropin is a form of bovine somatotropin or WIB – a natural protein hormone produced in the pituitary gland of all cows. In fact, all mammals produce protein hormones in some form of this kind – including humans. There are two types of hormones: steroids and proteins. rBST is not a steroid hormone; It is a protein-meaning protein digested like any protein when consumed. rBST allows cows to produce milk 10% to 15% more. Strictly for example, that means a cow can produce enough in a day to provide milk for 125 school lunches. The same cow equipped with rBST can provide enough milk for about 145 school lunches. Cows can produce more milk when they are injected with an additional amount of BGH, according to Iowa State University. BGH used for treatment is a synthetic chemical called BGH recombinant, or rBGH, developed by Monsanto, a Missouri-based company. In 1993 the Food and Drug Administration approved the use of rBGH, or rBST, in dairy cows. Organic milk and milk by adding hormones come from cows that are not treated with rBGH.

Differences and Similarities

rBST free vs organic milk is talking about cows which naturally produce hormones, so the milk is not hormone free at all, however no synthetic hormones are added which is known as a better one than conventional milk. And it also seems as though hormone-free is more of a marketing term. According to CNN reports, this topic pointing out research has shown there is no difference in milk from cows treated with rbST and cows without being treated. However, the author echos many who feel science-feeling and the FDA has let us down before and consumers are asking for the safety of, well everything. But then in certain case too, Natural News debunks gives us a glowing review of why adding hormones is not good, including pus getting into the milk from these cows which often get mastitis due to the overproduction of milk and these cows are then given antibiotics to treat the mastitis infection. Now, who wants all that in their milk?

rBST Free MilkrBST Organic Milk
- Contain no added synthetic hormones- Contain synthetic hormones
- Come from cows has not been treated- Come from treated with rBGH cows
- Healthier consumed- Not have the same proteins as the organic foods


Official USDA-organic seal is existed on the the label of organic milk. When you look for milk and other food products with this label, you will realize that they are free from added hormones or often being called free milk, and they contain the other requirements for organic foods too. Milk with no added hormones usually comes from cows that have not been treated with rBST as its written name. BGH is not meant to cause harmful effects to humans, according to Iowa State University. Organic foods do not necessarily have a higher number of nutrients than other foods.

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