---
title: "Is a 14–16 hour fast necessary to gain benefits"
description: "Discover why a 14–16 hour fast isn't necessary for benefits. Learn how a natural 12-hour fast supports weight loss, insulin sensitivity, and metabolic health."
url: "https://www.myalloy.com/knowledge-base/is-a-1416-hour-fast-necessary-to-gain-benefits"
---

# Is a 14–16 hour fast necessary to gain benefits

> Discover why a 14–16 hour fast isn't necessary for benefits. Learn how a natural 12-hour fast supports weight loss, insulin sensitivity, and metabolic health.

## Is a 14–16 hour fast necessary to gain benefits?

No, a 14 to 16 hour fast isn’t necessary to get benefits.

Here at Alloy, we generally see intermittent fasting as something that *can* help with weight and metabolic health for some people, but it needs to fit your life and not create stress. In our menopause nutrition content, Keri Glassman, MS, RD, often recommends a more “natural” intermittent fast of about **12 hours overnight** for most people, since you can still get benefits like cutting out late night snacking, without forcing a longer 14 to 16 hour window that can feel disruptive. You can watch that section here: [Is Intermittent Fasting Beneficial for Menopause? | Keri Glassman - Recommended Approach](https://www.youtube.com/watch?v=5kLBl9hL8K8&t=115s)


[Watch video](https://www.youtube.com/watch?v=5kLBl9hL8K8&t=115s)

Dr. Taylor Hahn makes a similar point for weight control, fasting can be helpful, but it’s not the only way to lose weight, and it should be something you can sustain. That chapter is here: [The Midlife Weight Equation: Hormones, GLP-1s & Metabolic Truths | Dr. Taylor Hahn - Sustainable Habits and Intermittent Fasting](https://www.youtube.com/watch?v=nacX449uf2Q&t=1706s)


[Watch video](https://www.youtube.com/watch?v=nacX449uf2Q&t=1706s)

If you’re doing Weight Care with us, the bigger “move the needle” habits we focus on are the ones you can repeat, like protein intake, strength training, sleep, and stress management. This article lays that out clearly: [Tips on How Healthy Habits Boost Weight Loss](https://www.myalloy.com/blog/healthy-habits-boost-weight-loss)

[Find Your Plan](https://secure.myalloy.com/experience)

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This answer was created using the following resources:

- [Is Intermittent Fasting Beneficial for Menopause? | Keri Glassman - Recommended Approach](https://www.youtube.com/watch?v=5kLBl9hL8K8)
- [How to Live Your Most Nutritious Life During Perimenopause and Menopause | Keri Glassman - Intermittent Fasting: Benefits and Considerations](https://www.youtube.com/watch?v=n3ZgAfaZQHI)
- [The Midlife Weight Equation: Hormones, GLP-1s & Metabolic Truths | Dr. Taylor Hahn - Sustainable Habits and Intermittent Fasting](https://www.youtube.com/watch?v=nacX449uf2Q)
- [Intermittent Fasting for Weight Loss - Fasting and Weight Control](https://www.youtube.com/watch?v=JOnAw7BSak4)
- [Tips on How Healthy Habits Boost Weight Loss](https://www.myalloy.com/blog/healthy-habits-boost-weight-loss)
- [Why Do Women Gain Weight During Menopause? Alloy](https://www.myalloy.com/blog/why-do-women-gain-weight-during-menopause)

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