Expert Q&A

Why did I go from 198 to 205 after I cut calories while doing intermittent fasting

Understanding Initial Weight Gain on Intermittent Fasting

When you cut calories and begin intermittent fasting, seeing the scale jump from 198 to 205 pounds feels discouraging—especially after past diet failures. This is common in beginners aged 45-54 dealing with hormonal changes. The number on the scale isn't always fat. In the first 2-4 weeks, many experience 3-7 pounds of water retention from glycogen stores. Each gram of glycogen holds 3-4 grams of water, so as your body adjusts to lower carbs or fasting windows, it can temporarily increase weight.

The Role of Stress Hormones and Metabolic Adaptation

Your body perceives calorie cuts as a threat, especially with joint pain limiting movement and diabetes or blood pressure concerns. This triggers cortisol release, which promotes fluid retention and can slow metabolism by 5-15% within weeks. In my book, The CFP Method, I explain how women in perimenopause and men with declining testosterone face amplified effects—hormonal shifts make fat loss harder while muscle preservation becomes key. Intermittent fasting helps insulin sensitivity but, if your eating window leads to undereating protein (aim for 1.2-1.6g per kg of body weight), you risk muscle loss that further drops metabolic rate.

Common Intermittent Fasting Pitfalls for Beginners

Many cut calories too aggressively below 1,500 daily without tracking, leading to compensatory bingeing or stalled energy. Joint pain often means less NEAT (non-exercise activity thermogenesis), burning 200-400 fewer calories daily. Conflicting advice overwhelms, but success comes from 16:8 fasting paired with resistance bands you can use at home for 20 minutes, 3 times weekly. Focus on anti-inflammatory foods like fatty fish, berries, and leafy greens to combat blood pressure and diabetes markers while supporting hormone balance.

Actionable Steps to Reverse the Gain and Lose Fat

Track waist circumference instead of scale—aim for 1-2 inches lost monthly. Increase protein to 100-120g daily, add electrolytes (sodium 3-5g, potassium 4g) during fasting to reduce water fluctuations. Walk 7,000 steps despite joint issues using supportive shoes, and cycle calories: 1,800 on lifting days, 1,400 on rest. In The CFP Method, I outline a 28-day protocol that reversed this exact pattern for hundreds in your situation, delivering 8-12% body fat reduction without gym memberships insurance won't cover. Patience pays—true fat loss appears after week 4 when adaptation stabilizes. Adjust fasting to 14:10 if 16:8 feels too stressful, and consult your doctor for personalized diabetes management.

💬 What the Community Says

The community shows mixed experiences with intermittent fasting leading to initial weight gain. Many in the 45-54 age group report jumping 5-10 pounds in the first two weeks, often attributing it to water retention or "whoosh" effect that eventually reverses. A common theme is frustration from past diet failures making people quick to quit when the scale moves up despite strict calorie cuts. Beginners managing diabetes and joint pain frequently debate optimal fasting windows, with some finding 16:8 too aggressive and 14:10 more sustainable. Most practitioners note that focusing on measurements rather than scale helps, though a vocal minority insists hidden calories or stress eating sabotage progress. Overall sentiment highlights the need for patience, as lived experiences show the gain typically drops after 3-6 weeks when combined with strength work and better sleep.
Cite this answer
Clark, R. (2026). Why did I go from 198 to 205 after I cut calories while doing intermittent fasti. *CFP Weight Loss*. https://ask.cfpweightloss.com/ask/why-did-i-go-from-198-to-205-after-i-cut-calories-while-doing-intermittent
Russell Clark, FNP-C, APRN, FNP-C, APRN
About the Author

Russell Clark, FNP-C, APRN, is the founder of CFP Weight Loss in Nashville and CFP Fit Now telehealth. Over 35 years in healthcare — Army Nurse Reserves, Level 1 trauma ER, hospitalist — he developed a 30-week protocol integrating real foods, detox, and low-dose tirzepatide cycling that has helped hundreds of patients lose 30–90 pounds. He and his wife Anne-Marie lost a combined 275 pounds using the same protocol.

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