Site icon Dr. Kara Fitzgerald

Phthalates Part 2: Avoiding Exposure and Boosting Natural Defenses

In Part 1 of this 2 part blog, we defined phthalates and discussed sources. Here we’ll be focusing on avoiding exposure as well as boosting the body’s natural ability to detoxify them out of our system. Simple lifestyle and dietary changes can go a long way in helping offset the dangers of phthalate exposure. If you missed the background and would like to learn more, go ahead and read Phthalates Part 1: What they are and how they affect your health. Otherwise let’s march on!

Metabolism

Below we’ll detail some simple steps to help reduce health risk from phthalates.

But first, to understand how to best manage phthalate exposure, we have to have a basic lesson in metabolism. In the human body, phthalates are known to be metabolized via several pathways that include the kidney/urine and the liver. We also know that phthalates have a high affinity for fat, and are stored in the adipose/fat tissue. This concentration in fat tissue is why it’s found in fatty animal foods.

The enzymes most responsible for breaking down phthalates are lipases and esteraces predominately found in the GI tract, specifically in the mucosa of the intestines and the pancreas. There are also enzymes in the liver, kidneys, lungs, skin and in the plasma, however these are not as abundant. These enzymes produce a toxic metabolite known as MEHP which can cause damage before being further broken down by a two-step process (phase I hydrolysis and phase II conjugation) to metabolites that are readily excreted via urine and feces.

Oral absorption of phthalates is thought to be the most hazardous because of the increased potential for production of toxic metabolite. Topical and inhaled forms are not metabolized as readily, and therefore have a lower incidence of toxicity, though topical exposure can still be significantly cumulative and harmful.

Avoiding exposure and improving health outcomes

Reducing health risks is a two-part process, first reducing exposure and second boosting our body’s ability to eliminate the toxin.
First, reduce phthalate exposure:

More about Phthalates, read Part 1: What they are and how they affect your health

References:

1. Serrano SE, Braun J, Trasande L, Dills R, Sathyanarayana S.Phthalates and diet: a review of the food monitoring and epidemiology data. Environ Health. 2014 Jun 2;13(1):43. doi: 10.1186/1476-069X-13-43
2. Stephen J. Genuis, Sanjay Beesoon, Rebecca A. Lobo, and Detlef Birkholz. man Elimination of Phthalate Compounds: Blood, Urine, and Sweat (BUS) Study. The Scientific World Journal. Volume 2012 (2012), Article ID 615068, 10 pages. http://dx.doi.org/10.1100/2012/615068
3. Abd El-Fatta AA, Fahim AT, Sadik NA, Ali BM. Resveratrol and curcumin ameliorate di-(2-ethylhexyl) phthalate induced testicular injury in rats. Gen Comp Endocrinol. 2015 Sep 8. pii: S0016-6480(15)00249-X. doi: 10.1016/j.ygcen.2015.09.006.
4. Tox Town – Phthalates – Toxic chemicals and environmental health risks where you live and work – Text Version. (2015, May 13). Retrieved August 22, 2015.
5. University of Minnesota. Phthalates: Absorption, distribution and metabolism. (2003). Retrieved August 22, 2015.
6. EWG. Dirty Dozen Endocrine Disruptors. (2013, October 28). Retrieved August 22, 2015.

Exit mobile version