Psyllium Husk Benefits | Are You Getting Enough Fiber? — Transcript
Full transcript
- 0:00Should we use psyllium husk to boost our
- 0:02fiber intake? Well, in 2014, a
- 0:0532-year-old woman had a severe infection
- 0:07in her gut from a bacteria called
- 0:09claustrdium deficile that caused
- 0:12diarrhea and crippling abdominal pain
- 0:14for 2 to 3 months. Different courses of
- 0:16antibiotics were tried, but when none
- 0:18worked, she elected to undergo a fecal
- 0:21transplant. As per the woman's request,
- 0:24her 16-year-old daughter, who was
- 0:25struggling with her own obesity issues,
- 0:28was chosen as the stool donor. After the
- 0:30transplant, the patients diarrhea and
- 0:32abdominal pain improved, but she
- 0:34presented again 16 months later with
- 0:37unintentional weight gain and obesity.
- 0:40This was despite a medically supervised
- 0:42liquid protein diet and exercise
- 0:44program. So, did this woman become obese
- 0:46because of her daughter's bacteria that
- 0:48now lived within her own gut? So in this
- 0:51video, we'll go through the importance
- 0:53of the bacteria that live within our
- 0:55bodies and we'll specifically look at
- 0:57how we can nurture it using fibers such
- 0:59as psyllium husk. So let's get into it.
- 1:01So when we think of bacteria, we usually
- 1:04think of life-threatening bacterial
- 1:06infections such as pneumonia, sepsis,
- 1:09not good things. But not all bacteria is
- 1:11bad. For every one human cell, there's
- 1:14one bacterial cell. So quite literally
- 1:17half of you and I, we're made up of
- 1:19bacteria. And collectively that
- 1:22bacteria, it's known as the human
- 1:24microbiome. And the colon or the gut is
- 1:27the organ that harbors the densest
- 1:29number of these bacterial cells. And in
- 1:32the diet, exercise, or supplement world,
- 1:34it's these bacterial cells that are
- 1:36often overlooked. And until recent
- 1:38decades, properties of the microbiome
- 1:41and the interaction that the microbiome
- 1:43has with our own cells have been largely
- 1:46unknown due to technology limitations.
- 1:48And right now, there are large scale
- 1:50projects such as the human microbiome
- 1:52project to figure out exactly how the
- 1:55microbiome works and all of the
- 1:56interactions that it has with our immune
- 1:59system, with our brains, with our
- 2:00hormone levels. Because this symbiotic
- 2:03relationship between the gut microbiome
- 2:05and the host, it's regulated and tightly
- 2:08controlled with a complex network of
- 2:10interactions that encompasses metabolic,
- 2:13immune, and neuroindocrine cross talk
- 2:15between them. And it's because of these
- 2:17complex networks that the microbiome,
- 2:19it's been linked with obesity with other
- 2:22health problems. So when that
- 2:2332-year-old woman got the bacteria from
- 2:26her overweight daughter and transplanted
- 2:28that bacteria into her gut, potentially
- 2:31there was some complex interaction that
- 2:33was happening that was causing her to
- 2:35become obese, to become overweight. So
- 2:38let's have a closer look and see what
- 2:40was going on. So within our bodies,
- 2:42there's a hormone called leptin. And
- 2:44leptin, it signals to our bodies that
- 2:46we're full, that we don't want any more
- 2:48food. And a lot of the leptin in our
- 2:50bodies, it's produced by the bacteria in
- 2:53our gut. So, if the bacteria in our gut
- 2:55aren't producing leptin, we're going to
- 2:57be eating more because we're hungrier.
- 2:59We're fighting a losing battle. Luckily,
- 3:02though, there is light at the end of the
- 3:04tunnel. We can fix this problem with
- 3:06fiber. So, dietary fiber is neither
- 3:09digested nor absorbed in the small
- 3:11intestine. So, think of fiber as the
- 3:13food source for our bacteria. So if the
- 3:16bacteria are full, they produce leptin.
- 3:19They tell our bodies, you know what,
- 3:20I've got all of the food that I want.
- 3:22Don't eat anymore. So they produce
- 3:24leptin and tell our bodies to stop. The
- 3:27trouble is though, in the classic
- 3:29western diet, a lot of the foods that we
- 3:31eat, they're refined. They've got the
- 3:33fiber taken away. So if we're not
- 3:35feeding the gut bacteria with fiber, it
- 3:38signals to our bodies that they're
- 3:39hungry, that they want more food. So
- 3:42this low intake of dietary fibers, it
- 3:44may at least in part contribute to a
- 3:46depletion of specific bacterial species.
- 3:50These alterations may result in
- 3:51dysfunctions contributing to the
- 3:53increase in development of chronic
- 3:55inflammatory diseases such as intestinal
- 3:58bowel disease, colurectal cancer,
- 4:00allergies, autoimmune diseases, obesity
- 4:02and its associated pathologies. Now
- 4:05classically fiber was divided into
- 4:07soluble and insoluble forms with the
- 4:10insoluble forms contributing to a fecal
- 4:12bulking effect. Whereas the soluble
- 4:14fibers they don't contribute to fecal
- 4:16bulking but they're fermented they're
- 4:18digested by the gut bacteria and give
- 4:21rise to metabolites such as short-chain
- 4:23fatty acids. And it's these fatty acids
- 4:26such as acetate and butyrate that have
- 4:28such complex interactions with our
- 4:31bodies producing all of those hormone
- 4:33reactions such as leptin. So overall,
- 4:36it's the fiber that feeds our bacteria
- 4:38and make sure that those complex
- 4:40reactions that happen between the
- 4:42bacteria and our bodies happen
- 4:44correctly. And we can get all of the
- 4:46fiber that we need from our diet from
- 4:48fruits, vegetables, whole grains. But
- 4:51there is a potential problem with eating
- 4:53too much fruits and whole grains.
- 4:54They've got a lot of carbohydrates. And
- 4:57if you've seen my videos about the keto
- 4:59diet, overall there is some research to
- 5:01suggest that a lower carbohydrate diet
- 5:04is beneficial for us in the long term.
- 5:07So yes, with the keto diet, you can get
- 5:09a lot of fiber from vegetables. But what
- 5:12about if we go one step further? And
- 5:14this is where psyllium husk comes into
- 5:16it. So psyllium husk, it's still keto
- 5:19friendly. It's got a very low calorie
- 5:21intake, but it's packed with fiber. So,
- 5:24psyllium husk, it's derived from seeds
- 5:27and it can be considered to have
- 5:28prebiotic potential. So, what we mean by
- 5:31this is that it promotes bacterial
- 5:33growth, which is exactly what we want in
- 5:35our gut. It helps to support the growth
- 5:37of bacteria that's beneficial to the
- 5:40host and increases the production of
- 5:42short- chain fatty acids. So, all of
- 5:44this has been great theory so far, but
- 5:46it's just that, it's theory. What do the
- 5:49studies actually show? What happens when
- 5:51we give psyllium husk to humans? Well,
- 5:54in 34 men with type 2 diabetes, half of
- 5:57them got psyllium and the other ones
- 5:59placebo twice daily for 8 weeks. And
- 6:02overall, there was lower total
- 6:04cholesterol and LDL cholesterol
- 6:06concentrations. In the people that got
- 6:08the psyllium husk, they also had lower
- 6:10glucose concentrations. So, this paper
- 6:12concluded that psyllium husk is well
- 6:14tolerated. It improves glycemic and
- 6:17lipid control with patients that have
- 6:19got type 2 diabetes and high cholesterol
- 6:22levels. So that is a great start and the
- 6:24good news keeps on coming. Psyllium husk
- 6:27or placebo, it was given to people when
- 6:30they consumed a hamburger and the
- 6:32results showed that the psyllium husk it
- 6:34suppressed the increase in serum
- 6:36triglyceride levels. So overall what
- 6:39that study was showing is that by having
- 6:41psyllium husk with food, you're reducing
- 6:43your cholesterol levels. It also helps
- 6:46in patients with constipation and it
- 6:48helps the constipation by promoting
- 6:50healthy growth of bacteria. So what
- 6:53about the big one? Will psyllium husk or
- 6:55fiber help with weight loss? Well, in
- 6:58345 people who were trying to lose
- 7:01weight, the most influential predictor
- 7:03of weight loss was fiber intake. And it
- 7:06seemed to do this because the people who
- 7:08had the higher dietary fiber intake,
- 7:11they were more easily able to follow the
- 7:13calorierestricted diet. So this calls
- 7:16back to what we were talking about
- 7:17earlier on in the video. So we were
- 7:19talking about how fiber it feeds our
- 7:22bacteria and when the bacteria are full,
- 7:24they produce leptin. And it's the leptin
- 7:27that makes people feel full. So, it was
- 7:30a lot easier for people who wanted to
- 7:32lose weight to reduce their calorie
- 7:34intake because their bodies were telling
- 7:36them that they were feeling full because
- 7:38their bacteria were full. And just to
- 7:41finish off the research, I did have a
- 7:43look at dietary fiber in regards to
- 7:45colurectal cancer. But overall, the
- 7:48quality of evidence was low and there
- 7:50was high risk of bias in the included
- 7:52studies. So, it does make sense that
- 7:54with fiber, we're going to have
- 7:56healthier bacteria. So in theory, we'd
- 7:58reduce our cancer risk in the gut, but
- 8:01there's just not enough data yet to
- 8:03conclusively prove that. And the one
- 8:05final thing that I want to go through
- 8:07about dietary fiber is that it protects
- 8:09the proteins that we take in. So protein
- 8:12fermentation refers to the bacterial
- 8:14breakdown of proteins to amino acids.
- 8:17The trouble is during this process,
- 8:19there's other potentially toxic
- 8:20compounds that are created. And this
- 8:23process, it normally increases when
- 8:25there's a shortage of fermentable
- 8:27carbohydrates available to the gut
- 8:28bacteria as a source of energy. So if we
- 8:32don't properly feed the gut bacteria,
- 8:34they turn to other sources. They start
- 8:36breaking down proteins, not what we want
- 8:38because they produce toxic compounds.
- 8:41What we want to make sure is that the
- 8:43gut bacteria, they're digesting things
- 8:45that are going to work for us, such as
- 8:48psyllium husk. So why psyllium husk
- 8:50compared to all of the other fiber
- 8:52options? Well, when it comes to the
- 8:54benefits of fiber, there's insufficient
- 8:56clinical evidence to support a
- 8:58recommendation for other types of fiber
- 9:00such as bran. But there is enough
- 9:02evidence for psyllium husk, which is the
- 9:04only fiber supplement with sufficient
- 9:06clinical evidence to support a
- 9:08recommendation. So after looking at all
- 9:10of this data, it reaffirms to me how
- 9:12important fiber actually is. So that's
- 9:15why I always make sure to eat whole
- 9:17foods. But I've also recently ordered
- 9:19from Amazon some psyllium husk. And the
- 9:22brand that I've gone for is called Now
- 9:24Foods. And I've chosen this brand
- 9:26because the psyllium husk here, it's
- 9:28just psyllium husk. There's no other
- 9:30additives to it. It's also very highly
- 9:32rated.
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