The speed of weight loss varies from individual to individual. Some may lose faster, whilst the others slower. However, the safe guideline to weight loss is 1–2 pounds (0.5–1kg) per week, hence, losing 30 kg safely and effectively would require about 30–60 weeks.
Well, it depends how you structure the diet and exercise program and how much weight loss you expect each week. If your diet and workout is planned to accommodate for a loss of 1 kg of weight each week then it would take about 30 weeks to lose 30kgs.
Strict diet and workout is not that healthy, but losing weight slowly will go for maintain long run. Doing diet and workout in a healthy manner will reduces approx 4–5 kgs a month. Losing weight is not an issue but to maintain it, is a real task.
When you’re trying to lose weight, slow and steady wins the race. Losing weight at a gradual, sustained rate increases the long-term success of keeping it off, so plan on a healthy weight loss of 1 to 2 pounds per week. Make the right changes and stay diligent, and you can expect to drop 30 pounds in 3.75 to 7.5 months. A number of factors influence weight loss rate, such as gender, age and baseline activity level, so you may reach your target before or after this estimated time frame. A wide number of weight loss strategies are available, but it all comes down to burning more calories than you’re taking in. Consult your doctor or dietitian before starting a weight loss plan and for help in individualizing a plan to meet your needs.