E. - Fasting for Weight Loss: Physiological Implications

  • Thread starter kalladin
  • Start date
In summary, for an average person it takes around 24 hours of fasting before the body starts using fat reserves for energy. This knowledge can be useful for weight loss, as one can fast for 24 hours, do intense exercise, and then eat. However, there are dietary modifications that need to be made. It is important to consider the physiological implications of fasting before exercise, as the body may go into energy conservation mode and it is unclear how long this will last after the restricted diet is stopped. Making lifestyle changes can have a greater impact on long-term weight loss, as opposed to short-term fasting.
  • #1
kalladin
74
0
So it takes around 24 hours of fasting for an average person before the body taps into fat reserves for energy. So is this knowledge useful for people who want to lose weight? For example, fast for 24 hours, do crazy exercise then eat some food. Of course, there's the dietary modifications that have to be made. What are the physiological implications of fasting before exercise?

K.
 
Biology news on Phys.org
  • #2
The body will go into a mode of energy conservation when it starts running out of energy. I don't know how long this mode is maintained after the restricted diet is stopped, you don't want to gain extra weight when you go back to your old diet (jojo effect).

Changing your lifestyle would have the biggest impact in the long run.
 
  • #4
:blushing: jojo is dutch for yo-yo
 

1. What is fasting?

Fasting is the practice of voluntarily abstaining from food and/or drink for a certain period of time. It is often done for religious, spiritual, or health reasons.

2. How does fasting lead to weight loss?

When we fast, our body enters a state of ketosis, where it starts using stored fat as an energy source instead of glucose from food. This leads to a decrease in body fat and, consequently, weight loss.

3. Is fasting safe for weight loss?

Fasting can be safe for weight loss if done correctly and under medical supervision. It is important to consult a healthcare professional before starting a fasting regimen, especially for those with pre-existing health conditions.

4. What are the physiological implications of fasting for weight loss?

During fasting, our body goes through a process of autophagy, which is the breakdown and recycling of old or damaged cells. This can have numerous health benefits, including improved insulin sensitivity, reduced inflammation, and increased metabolism.

5. How long should I fast for weight loss?

The duration of a fast for weight loss can vary depending on individual goals and health statuses. It is generally recommended to start with shorter fasts, such as intermittent fasting, and gradually increase the duration if desired. It is crucial to listen to your body and stop fasting if you experience any adverse effects.

Similar threads

  • Biology and Medical
Replies
1
Views
1K
  • Biology and Medical
Replies
34
Views
13K
  • Biology and Medical
Replies
20
Views
18K
Replies
16
Views
4K
  • Biology and Medical
9
Replies
287
Views
18K
  • Poll
  • Biology and Medical
Replies
2
Views
5K
  • Biology and Medical
Replies
6
Views
4K
Replies
1
Views
3K
  • Biology and Medical
Replies
6
Views
4K
  • Biology and Medical
Replies
20
Views
9K
Back
Top