Under the supervision of researchers at King\u2019s College London, both men consumed the same number of calories each day and trained side by side with endurance workouts five to six times per week. The only difference? Hugo went fully vegan, while Ross stuck to an omnivorous diet. Their health\u2014weight, cholesterol, muscle mass\u2014was monitored throughout the experiment.<\/p>\n
The vegan twin: lighter, leaner, more energetic<\/p>\n
After 12 weeks, Hugo, the vegan twin, had shed about a kilo and reduced his body fat by 1%. His cholesterol levels also dropped. But the change he noticed most wasn\u2019t on the scale\u2014it was in his energy levels.<\/p>\n
\u201cThe first two weeks were tough,\u201d he admitted, craving meat, cheese, and dairy. But once his body adjusted, Hugo found himself reaching for fruits, nuts, and plant-based alternatives. The result? More consistent blood sugar and a steady supply of energy throughout the day. \u201cI felt sharper during workouts, like I had a bit more in the tank,\u201d he explained.<\/p>\n<\/p>\n
The omnivore twin: muscle gains but less stamina<\/p>\n
Ross, meanwhile, built significant strength. His omnivorous plan helped him pack on 5 kilograms of muscle in just three months, along with a 2% increase in body fat. His cholesterol stayed stable.<\/p>\n
Yet despite the muscle gains, Ross said his daily performance wasn\u2019t always optimal. Some days he felt flat, and he struggled to match Hugo\u2019s sustained energy during long training sessions.<\/p>\n
Gut health: where the biggest differences appeared<\/p>\n
Perhaps the most fascinating results came from their gut microbiome. Researchers observed that Hugo\u2019s switch from animal to plant proteins caused noticeable shifts in his gut bacteria. These changes are thought to strengthen resistance against chronic conditions such as obesity and type 2 diabetes.<\/p>\n
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