One of the interesting things I've noticed (been frustrated by) is that while some herbs have a whole bunch of studies done of them, and have multiple systematic reviews and are generally well studied (*cough* St. John's Wort *cough*) others have very little research done on them.
One example of this is red Raspberry leaf and its use for treating menstrual cramps, or dysmenorrhea in the literature. Red raspberry leaf is pretty well known by people in general where I am, to the point that people who don't know anything about herbalism at all know about raspberry leaf tea for menstrual cramps. It is in many herbal books, and if you look at online forums, loads of people are saying it's effective for them, some even going so far as to say it is the only thing that works for their cramps.
Seems like something worth looking into the science of, right?
But when I go to look at the research that I can access (as a non-student, non-researcher), there's very little on raspberry for this use. I found:
One article* in the Lancet from 1941 that looked at the effects of raspberry leaf on animal uteruses, which I would recommend not reading if you're squeamish about descriptions of animal experimentation.
A paper** that referenced the above and the traditional medicinal use of raspberry, and then treated human patients with dysmenorrhea with a combination of five different herbs in one pill. It did find a positive effect, but also one of the other herbs themselves are well studied in this and has a good amount of evidence to back it up.
A review*** that says they found both mild and effective herbal treatments in the literature, but doesn't let you actually read what they are without purchasing the article, which is a massive barrier. And it doesn't reference any clinical studies on raspberry leaf. Any. Which makes me suspect there aren't any studies to reference.
Another article that just references the 1941 article and traditional knowledge.
Finally, a paper in 2002****, this time on guinea-pig ileum. They did find that it had an antispasmodic effect on the guinea pig's small intestine in test tubes.
And that is it. That's all I can find through Science Direct or Google Scholar. No large scale, double-blind, placebo controlled studies in humans. No single-herb studies in humans. No in vivo studies in humans. No review articles, because there is nothing to review. To be clear, these things all exist for other herbs, and I'm super stoked to read them.
And I'm kinda really frustrated, because menstrual cramps are really common, monthly occurrence for about half the population. They suck. If you listen to people who drink raspberry leaf tea, they say it is very effective, going so far as to prevent menstrual cramps from ever happening. You would think that this would be something that scientists have studied, because that's a huge amount of possibly preventable pain.
And yeah, we have over the counter pain medication now, but it still seems like someone would have looked into it. Because I don't think I'm the only one who would prefer having a cup of tea over the other options.
* https://www.sciencedirect.com/sdfe/pdf/download/eid/1-s2.0-S0140673600713481/first-page-pdf JH Burn, ER Withell "A principle in raspberry leaves which relaxes uterine muscle" The Lancet, 1941
** Bone, Kerry. "Phytotherapy for pain management in dysmenorrhea." Townsend Letter for Doctors and Patients 258 (2005): 57-60.
*** https://www.eurekaselect.com/article/95649 Rashmi Saxena Pal*, Yogendra Pal, Pranay Wal, Nikita Saraswat and Ankita Wal, "A Novel Approach on Review of Herbal Menstrual Cramps Relievers" Current Women`s Health Reviews 2019
**** https://onlinelibrary.wiley.com/doi/abs/10.1002/ptr.1040 Janne Rojas-Vera, Asmita V. Patel, "Relaxant activity of raspberry ( Rubus idaeus) leaf extract in guinea-pig ileum in vitro" Phytotherapy Research, 2002
35 notes
·
View notes
I am SCREAM!!
From my neighbor I got a red and a golden raspberry plant start!! I found a good bed with full sun in the morning and shade in the afternoon. We’re going to put in a cow panel as an arch when they get bigger then train them over the arch
That’s right, I’m going to have a berry arch in my yard
3 notes
·
View notes
Uncover the natural prowess of red raspberry seed oil as we unravel its sun-protective magic and delve into the myriad benefits it brings to your skincare routine.
0 notes