Dr. Ashley LucasPhD Nutritionist & Dietitian | Owner & Founder PHD Weight Loss & Dr. Ashley Wellness

Low-Fat Diets Are Killing Your Hormones 😱 Here’s Why

25 Dec 2025 · 1 min

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A short transcript from a video presentation arguing that low-fat, high-carb, low-calorie diets—especially when following USDA protein guidelines—can reduce dietary fat intake, lowering hormone production (testosterone and growth hormone). The speaker claims these hormones are essential for muscle preservation and that insufficient protein and healthy fats lead to muscle breakdown.

Chapters

The macros of the food you are consuming really does matter. If you follow the USDA's guidelines for protein and you eat a low fat, high carb, low calorie diet, what's going to happen is you're consuming ultimately less fat, which is going to cause a lower hormone production. Your body needs fat to make hormones. It needs fat to make testosterone and growth hormone. These hormones are critical for muscle preservation. Without these, your body will start to break down muscle, and that's what happens when we're not consuming adequate protein and healthy fats.