Healthy sustainable weight gain requires both patience and uniform approach together with an optimal strategy. Your objective to gain weight during two months requires focusing on building muscle instead of accumulating only fat regardless of your goal being fitness-oriented or health-related. A step-by-step guide follows to help you achieve weight gain during two months of time. 1. Calculate Your Caloric Needs Start by determining your maintenance calories—the number of calories you need to maintain your current weight. Then add 300–500 calories per day to slowly gain weight. If you're looking for faster results, aim for a 700–1,000 calorie surplus, but always make sure it's from nutritious sources. 2. Prioritize Nutrient-Dense Foods Eating high-calorie junk food may lead to quick weight gain, but it can harm your health. Instead, choose whole, nutrient-rich foods like: Lean meats (chicken, beef, turkey) Fish (especially fatty fish like salmon) Whole grains (brown ri...