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CBD For Morning Sickness: Beneficial Or Dangerous?

CBD For Morning Sickness: Beneficial Or Dangerous?

You're pregnant and miserable with nausea and a body full of mixed-up hormones. Can you safely use cannabidiol (CBD) for morning sickness, anxiety, and other health issues? The answer is short—nobody knows for sure yet. This is mainly because it's a difficult subject and population to study—for understandable reasons—and data is very sparse. 

However, some studies have been done in laboratories, animals, and human pregnant women and their children, so here we attempt to unpack the available research so you can decide for yourself.

Please note that if you're pregnant, it would be advisable to consult with your physician or pediatrician before taking any nutritional supplement, including CBD for morning sickness.

If you’re pregnant, is it safe to use CBD for morning sickness? Nobody knows for sure yet.

Studies Are Saying Be Careful When Using Cannabis During Pregnancy

The outcomes of exposure to cannabis have been fairly well reviewed. A 2016 systematic review and meta-analysis conducted by several departments at the University of Arizona in Tucson revealed the following regarding the use of marijuana during pregnancy:

  • It's not good for the mothers. The cannabis-using mothers were more likely to suffer from anemia, or iron deficiency, compared to mothers who didn't.
  • It wasn't good for most babies. Infants of using mothers were more likely to suffer from low birth weight (LBW)—so much so that the babies needed to be placed in the neonatal intensive care unit. LBW is associated with greater mortality among infants, as well as long-term consequences such as short stature, neurosensory impairment, lower intelligence and educational achievement, and increased chances of severe personality disorders. [1]

Another 2016 review, looking to demonstrate the effects of marijuana exposure on a developing embryo, was conducted at the Georgetown University Medical Center in Washington, D.C. Here, the researchers noted that cannabis use altered multiple mechanisms in the mothers' bodies, which, they concluded, could result in dire problems. These problems include the following:

  • Miscarriage
  • Congenital malformations
  • Learning disabilities and impaired cognition later in the children's lives [2]

Researchers have studied CBD’s association with inhibition of cell growth and cell movement.

In a study conducted on mouse embryos, researchers found that THC inhibited the development of the embryos which contained less than eight cells. Another natural cannabinoid found in the human body, anandamide, also stopped the embryos from developing. Knowing that CBD can increase the levels of anandamide, there may be negative effects associated with CBD use during pregnancy. It is important to note that this was a study conducted on mice and the results may not be transferable to human subjects.

It's important to remember that CBD has been associated with inhibition of cell growth, cell movement, and even cell death. This augurs well for the treatment of diseases such as cancer, for instance, as other studies have shown. [3]

RELATED: 8 CBD Benefits That You Should Consider

However, this property has been demonstrated across many cell lines, and as the researchers put it:

"...by the same mechanisms that cannabinoids show promise in the field of cancer treatment, they prove equally dangerous to the viability and health of a developing embryo...The effects of cannabinoids on pre-implantation and embryologic development have the potential to elicit harmful outcomes postnatally." [2]

Yet another older review into the consequences of maternal marijuana use on the fetus notes that:

".. at birth, newborns show increased tremors accompanied by exaggerated and prolonged startles or altered sleep patterns. In infancy, children exposed to cannabis in utero are more likely to have problems with executive functioning including lower memory scores, as well as more attention problems, hyperactivity, and impulsivity in early childhood." [4] [5]

In other words, smoking or ingesting THC during pregnancy is associated with neurological problems in children. These issues include poor memory, attention problems, hyperactivity, and impulse control disorders.

These reviews cannot be ignored, so taking cannabis or CBD for morning sickness or any other pregnancy symptom should not be considered lightly.

However, the authors of all these reviews admit that the subject is vastly under-researched and that there are, in fact, numerous problems with the available data.

Taking CBD for morning sickness should not be considered lightly.

RELATED: CBD Oil and Fertility: Do You Have All the Facts?

Flaws In The Studies

A few design flaws were inherent in all clinical studies reviewed, which can undoubtedly impact the research conclusions.

  • Reviewers admitted that all the pregnant subjects used cannabis together with other toxins such as tobacco, alcohol, opioids, and others. This could have skewed the data, and to date, there is no way to determine a “cannabis-only” effect on human fetuses. Also, the subjects mostly ingested cannabis via smoking—which, according to the reviewers, "can add a number of toxins and thereby amplify harmful effects to the embryo." [1][2]
  • Very few variables in the studies could be interpreted clearly, and "...many studies reported unique maternal and fetal outcomes not reported in other studies; therefore, definitive conclusions could not be drawn." [1]
  • Most of these studies relied on the mothers' self-reported use of cannabis, which "... may have underestimated the prevalence of drug use during pregnancy due to social desirability." [1]
  • Also, these studies were all conducted in mothers who used tetrahydrocannabinol (THC)-rich cannabis, and to date, it appears that no data is available on CBD-only use.
  • In vitro or laboratory studies are preliminary and can be argued as (at least somewhat) speculative.

The most worrying, however, should be the data on CBD's effect on cancer cells. As previously mentioned, it has been shown to stop cell growth, kill off cells, and prevent tumors from spreading. This has been tested in human cell cultures as well, so it is not far-fetched to argue that CBD could possibly affect fetus cell growth. [6]

Also, another review looking only at the animal and human studies concluded that the endocannabinoid system plays a very important role in the development of the human central nervous system from gestation onward. Its activation during brain development, says the researchers, can induce subtle and long-lasting neurofunctional alterations. [7]

Yet Some Pregnant Women Use It—Can CBD For Morning Sickness Be Safe After All?

There is anecdotal evidence of mothers who used CBD during pregnancy without any apparent effect on their children. Perhaps factors such as the quality of the CBD oil these mothers took, as well as dosage and frequency of use, have made differences not yet spotted by scientists and physicians.

RELATED: CBD Dosage 101: What You Need To Know

Also, medicines that are now prescribed for pregnant women were previously advised against, such as antidepressants, painkillers, and some anxiolytics. The onus rests on the physician and the mother to decide on the risks.

Yet a lot of questions still need to be answered, and the effect of CBD for morning sickness or any other symptom in pregnant women can never be researched as it ideally should be—with long-term, placebo-controlled, double-blind clinical studies. Hopefully, other related research will pave the way for safe use, as CBD is undoubtedly a safe and very effective remedy for nausea and many other ailments. [8]

--------------

Sources:

  1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823436/
  2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5041313/
  3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3504989/
  4. https://www.researchgate.net/publication/26332526_Neurobiological_consequences_of_maternal_cannabis_on_human_fetal_development_and_its_neuropsychiatric_outcome
  5. https://www.researchgate.net/publication/327251827_Marijuana_Use_During_Pregnancy_and_Breastfeeding_Implications_for_Neonatal_and_Childhood_Outcomes
  6. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4791143/
  7. https://www.ncbi.nlm.nih.gov/pubmed/19607965
  8. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3165951/

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