6 hrs ago
Low-Fat Vegan Diet Linked to Weight Loss Without Calorie Counting
Researchers studied whether people could lose weight by changing what they ate rather than eating smaller portions.
Adults with overweight followed either a low-fat vegan diet or their usual diet for 16 weeks.
The vegan diet included fruits, vegetables, grains, and legumes.
Participants were not told to count calories or eat less food.
People on the vegan diet ate about 357 fewer calories each day.
They still ate about the same weight of food, but their food contained fewer calories per gram.
This happened because plant foods often contain more water and fibre than meat, dairy, and eggs.
The researchers found that bigger decreases in food energy density were linked with more weight loss.
A 16-week randomized trial studied adults with overweight assigned to a low-fat vegan diet or an unchanged control diet.
The vegan diet emphasized fruits, vegetables, grains, and legumes without calorie limits or portion restrictions.
Participants on the vegan diet consumed about 357 fewer calories per day while eating nearly the same amount of food by weight.
The diet lowered food energy density by about 30%, while energy density stayed essentially unchanged in the control group.
Greater reductions in energy density were associated with greater weight loss, even after accounting for calorie changes.
- Who
- Adults with overweight participated in the randomized clinical trial; Hana Kahleova led the research.
- What
- The study examined whether an unrestricted low-fat vegan diet could reduce calorie intake and support weight loss through lower food energy density.
- Where
- Not specified in the article.
- When
- The trial lasted 16 weeks.
- Why
- Researchers investigated an approach to weight management that might reduce calorie intake without calorie counting, portion restriction, or increased hunger.
Key facts
- Study design
- 16-week randomized clinical trial
- Participants
- Adults with overweight
- Vegan diet
- Low-fat and centered on fruits, vegetables, grains, and legumes
- Calorie instructions
- Participants were not given calorie targets or told to restrict portions
- Calorie reduction
- About 357 fewer calories per day in the vegan group
- Energy-density change
- Approximately 30% lower in the vegan group
- Control group
- Participants continued eating as usual without dietary changes
Quotes
Hana Kahleova
Lead author and director of clinical research at the Physicians Committee for Responsible Medicine
“This helps answer a question people often have about plant-based eating: How can you lose weight without counting calories or going hungry? The answer is energy density. Plant foods are rich in water and fibre, so you can fill your plate, feel full, and still take in fewer calories.”
republicworld.com
“It's about choosing foods that naturally deliver fewer calories in every bite. A 30% reduction in energy density is a substantial shift that would be very hard to achieve and sustain through portion control alone.”
republicworld.com
Sources
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