Questions tagged [fat-metabolism]

The set of biochemical processes involved in the creation and utilization of lipids.

Filter by
Sorted by
Tagged with
10
votes
1answer
14k views

What is/are the molecular differences between HDL and LDL cholesterol?

Why exactly is HDL-cholesterol good for us and LDL-cholesterol bad for us. It has been well-established that LDL-cholesterol is associated with atherosclerosis and that HDL-cholesterol helps remove ...
4
votes
2answers
5k views

Can the human body create glucose out of fat?

I read conflicting views about whether or not the human body can create glucose out of fat. Can it?
-2
votes
1answer
70 views

How does body fat leave your body?

So I know that it’s not from tears or sweat because they are composed of mainly water and sodium, it’s not from going poo or pee as poo and pee are made of the parts of food that supply your body with ...
4
votes
1answer
678 views

Why do humans lose subcutaneous fat tissue with age?

Why exactly do humans lose subcutaneous fat tissue with age? It appears that we either lose fat cell volume or we might actually be losing the number of fat cells with age. One hypothesis is that as ...
4
votes
3answers
4k views

Breathing faster to lose (more) weight?

I understand that when the human body loses weight, the vast majority of that weight is lost as $CO_2$ (and a small bit is lost as water). I expect the predominant way $CO_2$ exits the body is through ...
3
votes
1answer
49 views

Where does weight go when you lose it? [duplicate]

When one loses weight, where does the lost poundage (I assume comprised mainly of fat) go? Is it urinated out? Defecated out? If a combination of both, does the percentage of each differ depending on ...
3
votes
1answer
143 views

How does the human body extract energy from ethanol?

I was talking about alcohol and obesity with a colleague. I always thought the only cause of that is the sugar that is found in most alcoholic beverages. But my colleague pointed out that ethanol ...
-1
votes
1answer
105 views

When you lose weight, how does the mass exit your body?

As a thought experiment, consider the case of Angus Barbiery, who allegedly lost almost 200kg in about a year by not eating at all, save for necessary nutrients provided as supplements. My question ...