The Science-Backed Diet Plan to Lose Belly Fat

Research-proven dietary strategies that specifically target abdominal fat.

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Updated: May 25, 202512 min readWritten by Nutrition Team
The Science-Backed Diet Plan to Lose Belly Fat

富含蛋白质和纤维的均衡饮食是减少腹部脂肪的关键

Understanding how to lose belly fat starts with knowing why it accumulates and what dietary choices can help reduce it.

Why Belly Fat Is Different

Not all body fat is created equal. Subcutaneous fat (the kind you can pinch) is less harmful than visceral fat (the deep abdominal fat surrounding your organs). Visceral fat is metabolically active and releases substances that increase inflammation and insulin resistance.

The good news? Research shows that visceral fat responds well to dietary changes - often better than subcutaneous fat.

Science-Backed Diet Plan

Based on multiple clinical studies, here's a comprehensive approach to reducing belly fat through diet:

1. Prioritize Protein

Higher protein intake is consistently associated with lower levels of belly fat. Aim for protein to make up 25-30% of your daily calories.

  • Research in the American Journal of Clinical Nutrition found that participants who increased protein intake to 30% of calories had significantly less abdominal fat gain over 6 months.
  • Protein increases satiety hormones while reducing hunger signals.
  • Best sources: lean poultry, fish, eggs, dairy, legumes, and plant proteins.

2. Focus on Fiber

Soluble fiber forms a gel in your digestive system, slowing digestion and promoting fullness. It also feeds beneficial gut bacteria, which may reduce belly fat.

  • A study in the journal Obesity found that for every 10g increase in soluble fiber consumed daily, visceral fat accumulation decreased by 3.7% over five years.
  • Aim for 25-35g of total fiber daily, with at least 6-8g coming from soluble sources.
  • Best sources: beans, flaxseeds, avocados, apples, and oats.