Health
Are vegans naturally weaker?
Short answer
No. Strength and mass depend on training, energy and protein, not a diet label. There are vegan endurance and strength athletes. Undereating weakens anyone.
AND does not tie veganism to inevitable muscle loss. Calories + protein + a training stimulus work on a plant diet.
Anecdotes about a cousin who “got weak” often describe a calorie deficit, not a magic property of meat.