Nutrition Steps - A free, open-access course in diet & nutritionLipids
5.1 What are fats and where are they found in food?
In this video we introduce lipids and see how much fat is found in different food categories
5.2 The lipid hypothesis: a tale of seven countries
Although it has long been proven wrong, the idea that "fat in food is a bad thing" is deeply-rooted in most people's mind. A little trip down history lane to show where it all came from...
5.3 Unhealthy consequences of the “war” against fat
Vegetable oils, margarines, fat-free products and french paradoxes: a solution worse than the problem.
5.4 Triglycerides and their functions
Triglycerides are by far the most abundant type of lipid in our body. What are their functions?
5.5 Meet the fatty acids family
Today we learn the distinction between saturated, monounsaturated and polyunsaturated fats; between omega 3, omega 6 and omega 9 fats; and between cis and trans fats.
5.6 Fat quality is what really matters
Saturated, monounsaturated, polyunsaturated, omega-3, omega-6, hydrogenated, trans fats... What are the implications of all these differences for our health and where do we find these different types of lipids in food?
5.7 Omega-3 and omega-6: a delicate balance
Why is it so important to make a distinction, within the polyunsaturated fatty acids, between the omega-6 and the omega-3 families? How can we balance them properly with our diet?
5.8 The dangers of oxidized lipids
How a good healthy fat can become extremely detrimental to our health...
5.9 The trans fats and lipids hydrogenation dilemma
What are the dangers of hydrogenated oils, why trans fatty acids are extremely detrimental to our health, and what can we do about it?
5.10 How much fat do we need?
What is the optimal dietary lipids intake? And what are the correct proportions between the different types of fats?
5.11 Phospholipids and the benefits of lecithin
What are phospholipids and what are the benefits of lecithin?
5.12 Cholesterol: functions, dangers, and the diet
What is cholesterol? Why is it so important for us, but we don't want too much of it around? What is the link between diet and blood cholesterol levels?
5.13 How are lipids digested?
The steps of lipids digestion and the mechanisms of action of some lipid-related medications and dietary compounds
5.14 The true story of LDL and HDL cholesterol
In this video we learn about lipids transport and metabolism. What is a lipoprotein? What is the difference between chylomicrons, VLDLs, LDLs and HDLs? What is good and bad cholesterol? Why does size and density also matters? How is diet related to blood cholesterol?
On to the next section...