1 CA500: Survival of the fittest is a tautology from the talk.origins index to creationist claims by Mark Ridley. 2  Is survival of the fittest a tautology by Don Lindsay.
What is healthy weight loss? It's natural for anyone trying to lose weight to want to lose it very quickly. But evidence shows that people who lose weight gradually and steadily (about 1 to 2 pounds per week) are more successful at keeping weight off. Healthy weight loss isn't just about a diet or program. It's about an ongoing lifestyle that includes long-term changes in daily eating and exercise habits.
The safe amount of weight to lose in a week is 1-2 pounds to sustain the weight loss. Now this is an average, one week you may lose 4 pounds and one week may be 0, but in general this should be a slow process.