Intermittent Fasting Linked to Potential Cardiovascular Risks, New Research Suggests
LONDON – A recent analysis is raising concerns about the cardiovascular effects of intermittent fasting, especially for individuals with existing heart conditions or diabetes. While frequently enough touted for weight loss and metabolic benefits, the research suggests a potential link to increased cardiovascular risk in certain populations.The findings, highlighted by leading endocrinologist Professor Misra, build on existing studies that demonstrate intermittent fasting can improve insulin sensitivity, reduce blood pressure, and improve lipid profiles. However, Professor Misra cautions that potential drawbacks include nutritional deficiencies, increased cholesterol, excessive appetite, and long-term adherence challenges.
A 2021 study published in JAMA Internal Medicine found that participants on a three-month intermittent fasting regimen lost weight, but a critically important portion of that loss came from muscle mass. Another study, published in JAMA, indicated potential side effects such as weakness, dehydration, headaches, and difficulty concentrating.
Professor Misra warns that continuous fasting poses risks of dangerous blood sugar levels for those with diabetes and may encourage overeating during non-fasting periods. For older adults or individuals with chronic conditions, prolonged fasting could lead to muscle loss.
“Based on current evidence, what people eat when thay eat seems more important than focusing on eating time,” Professor Misra stated. He advises that individuals with heart disease or diabetes exercise caution when adopting an eight-hour eating window and emphasizes the need for personalized dietary consultation based on individual health status and evidence-based recommendations.
The current consensus,according to Professor Misra,is to prioritize a balanced diet over strict adherence to fasting schedules,particularly given the evolving understanding of its potential risks. Until further research clarifies the long-term effects, a cautious approach-focusing on dietary quality rather than timing-is recommended.
