This is a short promotional video, telling you a bit about the course and allowing you to decide if this course is for you.
We will firstly consider how the concept of calories first arose as an accepted paradigm. Then looking at how calories are measured and calculated, we will clearly see that, at best, this construct is only an estimate of energy consumption or expenditure. After reviewing an extreme case study, we'll examine what role genetics has to play.
We'll start by finding out how the low-fat construct first came about in nutrition consciousness, and then how it fell from grace at the turn of the century. Having now swung towards a low-carb ideal, many people are now eating a lot of fats, but are they good for us and do they make us put on weight? You'll gain insights into these questions during this lecture.
We'll firstly consider what a carb is - many people are very confused about food categories, so a quick definition will help to reduce the fear factor around carbs. We'll then consider the very important question of whether the carb comes from a man-made or nature-made source. Glycaemic Index will also be explained, plus a consideration of treat, or comfort, foods.
I'll ask the question: "what is your ethnic background?" Why? Because we need to start considering ourselves as individuals with unique backgrounds and unique physiology. I'll also flesh out the black and white continuum and actually start considering shades of grey when it comes to dietary and weight management responsiveness.
You'll learn about the infamous Hypothalamus-Pituitary-Adrenal (HPA) axis and how your thoughts, your behaviors, and food choices can throw your thyroid, adrenal, and sex hormones out of balance. We'll consider the negative effects of stress on these hormones and also look at some key foods to avoid and foods to consume when striving for hormone balance and healthy weight management.
You'll learn about how our detoxification processes work (predominantly via the liver), plus the importance of detoxification for weight management. Then we'll discuss the most important nutrients for liver function and foods that have been identified as extremely good for our liver detoxification.
With the modern epidemic of diabetes in mind, I will explain how we become insulin resistant, and conversely, how we gain insulin sensitivity. We'll then view one of my favorite nutrition tools - the blood sugar curve, which I use to help you understand the use of foods and lifestyle patterns for your insulin health.
What is the difference between an allergy, a sensitivity, and an intolerance? Because it is important to discern between these definitions, I'll explain them to you. Food sensitivities can make a huge difference to your general health (especially digestive) and body fat deposition, so I'll explain the best ways to identify them in your diet.
In this modern era of high levels of environmental toxins, we will consider several sources of toxins in our lives and ask the question: "is obesity an environmental issue?" In particular, we will look at certain toxins that get into our food and drink and influence the balance of our sex hormones.
Revisiting the HPA-axis from week 2, we'll see how stresses can negatively affect the balance of our hormones and weight management. This includes big life stresses, but also day-to-day stresses that we all regularly encounter. With the relax and repair the nervous system in mind, we'll consider ways to reduce the impact of stress on our lives.
Exercise is good for us, especially if we want to lose some weight, right? Yes, but what kind of exercise and how much is actually good for us depends very much on our genetics and our current lifestyle. Too little exercise won't have the desired effect, whereas too much exercise of the wrong type at the wrong time, will push us further into a state of stress.
Successful people don't sleep, or so they say. But do they function well, do they maintain a slim, healthy physique, and do they live long? Most experts think not. We will look at the importance of sleep for physiological balance and also consider how best to get into a healthy habit of long, undisturbed sleep.
This is a summary video, wrapping up the main learnings from The 21 Day Health Challenge, and introducing you to our longer, more immersive, health journey called 12 Steps to Wholesome Nutrition, which can be accessed one step at a time on Tablet Wise.