Studies of the digestion and how it absorbs nutrients has exploded over the past couple of years, there is a lot going on after you swallow that last bite of your Sunday lunch, its one of the many reasons nutrition is such a difficult program to assess without prior knowledge of some of the systems.
In fact some scientists believe were not just one person singularly speaking because of the intracellular behavior of the trillions of microorganisms living inside the intestinal tract, the effects it has on our mood and its ability to be able to think for itself
Interestingly there are about 10 times the amount of bacterial cells in our guts then cells in your body!! weighing in at an amazing 1.5 kg collectively known as the “Gut microbiome” it plays a role in everything from appetite regulation and immunity to food digestion and vitamin production, also linked to cognitive function and is often referred to as the second brain or Enteric nervous system.
Studies into people’s enterotype, can even be related to there propensity to obesity also guts lacking certain micro organisms can be linked to IBS and insulin sensitivity.
Supplementation alone cannot re-colonize your gut, drinking pro-biotics are a great tool to enrich certain populations, but science is lending its reservations to some of the potential risks and shouldn’t be seen as a band aid, a good balanced diet with the elimination of trigger foods is still the best way to keep both brains happy.
Today we will discuss the effects the microbiome has on appetite and metabolism and build upon this over the week.. so turn on post notifications if you dont want to miss an update.
Still shrouded in mystery and still not completely understood, evidence is suggesting that the little buggers can effect the hunger-regulating hormones in the gut and brain
Well, let me introduce you to some hormones that do just those things: the “hunger hormones,” leptin and ghrelin. Leptin is a hormone, made by fat cells, that decreases your appetite. Ghrelin is a hormone that increases appetite, and also plays a role in body weight.
Gut bacteria by fermenting some fibers with the byproducts of this reaction the production of (short chain fatty acids) stimulate the production of hormones responsible for satiety, others can produce certain neurotransmitters and neuromodulators which can also suppress your appetite.
Interestingly there seems to be a link between gut bacteria and the systems that drives eating for pleasure rather than hunger, one of the things we teach is how to gain insight to your hunger ques through a series of questions. so you can see that there is a hell of a lot more going on than we come to realize, i also hope it has shown you some clarity on why its so important to look after your gut.
Much more research needs to be done to possibly even understand some of the other effects the gut microbiome has in relation to eating behaviors, including obesity or other eating disorders.
Its no secret that skeletal muscle is one of the largest metabolically- active tissues in the human body and healthy individuals, linked to increases in metabolism, it has the ability to change the response to chemical reactions in the body like sensitivities to insulin, it responds rapidly to changes in fuel substrate and availability.
Diabetes, obesity, and diets high in fat are linked to whats known as “metabolic inflexibility” the abnormal skeletal muscle metabolism that leads to more fat storage in the muscle and the reduced ability to use that fat for fuel, this can be addressed through correct programming of physical activity along with the correct nutrition prescription.
LPS is the main culprit in skeletal metabolism inflexibility, people who have type II diabetes or obesity exhibit higher levels of LPS (lipopolysaccharide) binding to the immune receptors released by skeletal muscle the inflammatory response results in metabolic inflexibility.
you’ve possibly heard of a Fecal transplant?
Its the procedure of inserting a healthy persons feces into someone else to improve the microbiome, studies in mice haVe shown that colonisation of bacteria from an obese mouse to a lean mouse will result in changes to insulin sensitivity and obesity without a change in food intake, again there needs to be much more research into how this can be an important player in the future of gut health.
As you can see the Gut is an important piece of the puzzle when it comes to health in general, a lot of its effects are still under the microscope but as more and more research is developed, especially from a health and fitness perspective the relationship between the 2 brains of the human body could change how we approach our approach to obesity and diabetes in the future.