Main post ( 200-300 words): 1. What class of biological...

main post (~200-300 words): 1. What class of biological molecules does sugar belong to and what are the most common types of sugars in our diet? 2. What are the main sources of sugars in your diet? 3. How do sugar molecules provide us with energy? What other molecules (besides sugars) serve as a source of energy for our bodies? 4. In terms of sugar consumption, what are potential dangers of processed foods and low-fat foods? 5. How do we know how much energy different types of food have? Why food labels list everything per 2000 calorie diet? 6. How do we know how much food do we need to eat? 7. Research suggests that obtaining (or keeping) a healthy weight is much more complex than just reducing caloric intake and exercising. Based on the information presented in the article, categorize different factors in three groups:Analyze your diet and life-style and make specific recommendations for yourself on how to achieve (or maintain) healthy weight. Alternatively, you can analyze diet and lifestyle of a family member or a friend. Make sure to discuss factors contributing to weight gain and loss.

Transcript

00:01 What are the most common types of sugars in your diet? so what kind of sugars do you have in your diet? most likely, glucose and fructose are found in syrups and in fruit.

00:15 Sucrose is found in fruit as well, and it's also table sugar, so it's added to a lot of food.

00:20 And there's also lactose, which is found in milk and milk products.

00:25 So what are the most common types? well, in this order, most likely if you follow the average western diet, sucrose from sweet things that have sugar added to them, and then fructose and glucose from fruit and from syrups, and finally lactose if you consume dairy.

00:46 If you are lactose intolerant, then you can drop that one, unless you eat it anyway.

00:54 How do they provide us with energy? so this is a process called cellular respiration.

01:01 So our cells perform this metabolic pathway, and we use the mitochondria to do so, and it's kind of like combustion.

01:09 Oxygen is used to break down glucose, and in doing so, in breaking it down into simpler molecules, we can harness the energy that was found in its bones.

01:21 When we turn it into atp, which is the fuel source for the other cellular activities.

01:26 What is the role of sugar in human evolution? well, if we go back to more prehistoric times and think about sugar, it would have been very scarce.

01:38 If we wanted sugar, we would have to get it from eating fruit.

01:41 So fruit was a very attractive food option for human beings.

01:45 So we wouldn't have had high amounts of sugar in our diet.

01:48 It would have been more plant fats and complex carbs and protein.

01:54 So very little until modern day.

02:03 And by mortal day, i mean the last couple hundred years where the average person started to get access to sugar to add to their diet.

02:14 So we are not particularly adapted to this time of having a lot of sugar.

02:19 What are the dangers of consuming excess sugar? the big danger of sugar is insulin resistance and type 2 diabetes, which results from this.

02:29 Type 2 diabetes is a major risk of excess sugar.

02:33 Other risks include obesity.

02:36 And heart disease.

02:44 Number five, what are the potential dangers of processed foods and low -fat foods? the danger here is that these foods tend to have a lot of sugar added to them.

02:58 So with processed food, then that's more likely to have a lot of sugar compared to unprocessed food because unprocessed food is something more like what you would find in the wild.

03:10 It's more likely to have complex carbs and not likely to have much sugar.

03:16 Unless it's fruit.

03:16 Fruit, of course, has quite a bit of sugar.

03:19 Low fat is a particular issue.

03:23 In the 1970s, for diets, people started to try to eat as little fat as possible, because they believed, with the help of the sugar industry, that fat made people fat, and it made sense to them.

03:37 Eating fat makes you fat...

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