That’s a very large weight change—from 287 lb to 145 lb is a loss of about 142 lb (≈64 kg), which is medically significant.
⚖️ What that kind of weight loss often indicates
There are two very different possibilities:
1) Intentional weight loss (common in long-term lifestyle change)
If this was planned, it usually reflects:
- sustained calorie deficit over time
- increased physical activity
- dietary changes (higher protein, lower processed foods)
- possibly medical support (dietitian, medications, or bariatric surgery)
In this case, it’s typically associated with improvements like:
- better blood pressure and cholesterol
- improved blood sugar control
- reduced joint stress and better mobility
2) Unintentional weight loss (important to evaluate)
If the weight loss was not fully intentional or not expected, it can sometimes be linked to health conditions such as:
- thyroid disorders
- diabetes (poorly controlled)
- digestive disorders or malabsorption
- chronic infection or inflammation
- mental health conditions or stress-related appetite changes
🧠 When it’s worth checking with a doctor
Medical guidelines generally suggest evaluation if:
-
5–10% body weight is lost without clear intent
- or weight loss is rapid, ongoing, or accompanied by symptoms like fatigue, weakness, or appetite changes
🥗 If it was intentional
At 145 lb, maintaining health becomes just as important as losing weight:
- prioritize protein intake (muscle maintenance)
- avoid going too low in calories long-term
- include strength training to preserve lean mass
- ensure micronutrients (iron, B12, vitamin D) are adequate
If you want, I can help you figure out:
- whether your current weight range is healthy for your height
- how to maintain after major weight loss
- or how to avoid rebound weight gain safely
