Intermittent fasting has become one of the most talked-about nutrition trends in recent years. From social media testimonials to best-selling books, it’s easy to find glowing success stories. But what does science actually say? We met with Cameron’s Registered Dietitian, Kylee Fitzpatrick, to break down the pros, the cons, and who intermittent fasting may be right for.
The Potential Benefits
- Weight Management: Research shows that intermittent fasting can help some people reduce calorie intake naturally, which may lead to weight loss. Unlike restrictive “diet foods,” intermittent fasting focuses more on when you eat rather than what you eat.
- Blood Sugar and Insulin Sensitivity: Some studies suggest intermittent fasting can improve insulin sensitivity and help regulate blood sugar, which may be beneficial for those at risk of type 2 diabetes.
- Heart Health: Limited evidence points to possible improvements in cholesterol levels, blood pressure, and markers of inflammation.
The Drawbacks and Risks
- Not a Quick Fix: While some people lose weight, intermittent fasting is not guaranteed to work for everyone. Long-term success still depends on balanced nutrition and lifestyle habits.
- Possible Side Effects: Hunger, fatigue, headaches, irritability, and difficulty concentrating are common when starting intermittent fasting. For some, these symptoms don’t go away.
- Potential for Disordered Eating: Strict fasting windows can sometimes encourage binge-restricting cycles or worsen unhealthy relationships with food.
- Limited Research in Certain Populations: Most studies have been done in adults without chronic illness. Less is known about intermittent fasting’s safety for older adults, adolescents, or those with complex health conditions.
Who It May Be Right For
- Adults in good health who are looking for a structured way to manage eating habits.
- People who prefer fewer, larger meals rather than grazing throughout the day.
- Individuals who enjoy routine and consistency.
Who Should Be Cautious or Avoid It
- Pregnant or breastfeeding women.
- People with a history of eating disorders.
- Those managing diabetes or other chronic conditions (unless closely monitored by a healthcare professional).
- Children and teens, since they need steady energy for growth and development.
Intermittent fasting isn’t a magic solution, but for the right person, it can be a helpful tool for improving health and eating habits. The key is to focus on nourishing, balanced meals while eating windows.
Kylee Fitzpatrick shared, “Intermittent fasting should be taken into consideration if it is sustainable as a lifestyle for an individual rather than a fad diet – as going back to normal eating habits can lead to reversal of any progress with weight loss and even lead to weight gain from where an individual started”.
If you’re curious about trying intermittent fasting, check in with your healthcare provider first to see if it’s a good fit for your lifestyle and health needs.