Doctor insights on:
Effects Of Low Calorie Diets On Periods
Yes: A consistently low calorie diet leading to significant and/or rapid weight loss can cause the body's hormonal balance to become disrupted. It is not uncommon for someone who is significantly underweight or who has lost weight very rapidly to experience amenorrhea, or the absence of menstruation. ...Read more
Refers to all the physical matter humans (like all living creatures) must take in on a recurring basis; only partially for energy. Like all life on planet humans are open systems which keep tearing down their structure & require intake of atoms/molecules from which to rebuild their structure. Intestinal lining cells replaced ~every 3 days. CaPO4 in bones ~every 6 years, ...Read more
Might be due to low: Calories. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. PCOS). #1 reason is pregnancy. ...Read more
Can PCOS be caused by extremely low calorie diet at age of 13? (diet caused clockwise periods not to come for 6 months, until returned to norm diet)
NOT MY FIRST CHOICE: Starvation/anorexia suppress the creation of hormones that are needed to sustain normal cycles. Return to normal nutrition signals the bodies internal clock that reproduction, an optional body function, would not draw off nutrients needed for the person to survive. PCOS is an entirely different issue that can cause irregular cycles. ...Read more
Short answer: It seems logical that if calories are the problem, you would want to eat as few of them as possible to speed weight loss. As a general rule, people need a minimum of 1, 200 calories daily to stay healthy. People who have a strenuous fitness routine or perform many daily activities need more calories. If you have reduced your calorie intake below 1, 200 calories a day, you could be hurting your body ...Read more
Fad diet vs low cal: This is what they call an "age old" question: Which diet works best? There are LOTS of diets out there, most of which actually work to induce weight loss. The real issue is KEEPING THE WEIGHT OFF. I recommend people find a diet they can actually stay on for LIFE. Lower calories, increasing exercise, avoiding processed foods, and drinking at least 64 oz of water. That's a diet for life! ...Read more
Probably not: It wold depend on the amount of protein you consume and how much you work out to develop and keep the muscles. Low calorie diets may not supply the anount of carbs, protein and fat you will need to maintain. It would depend on your height and weight and age. I would be very careful, work with a reputable sports trainer, sports medicine doctor and reputable nutritionist. Danger! Will robinson! ...Read more
How low is low?: Seems to me that exercising 4-5hr/d is a bit excessive. You only need 30min or so to improve your health. As for low calorie diet, it depends upon how low is low. More importantly, what kind of calories are you consuming? Healthy or junk? Processed or otherwise? What's your goal w/this extreme approach? Discuss your concerns, plans & goals w/your family doc who knows most about you & your health. ...Read more
Water intake: Not really safe. You need roughly 64 ounces of fluid a day. 2 gallons of water is 256 ounces of fluid, not only that, it is free water rather than balanced electrolytes. The net effect will be that you will eventually become hyponatremic and that can cause you all sorts of problems. You could probably do a gallon and still be okay. 2 is pushing it. ...Read more
When on a low calorie diet how often should calories be increased to maintain my metabolic rate and by how much?
Won't affect: Metabolic rate. That is determined by genetics, exercise, thyroid level, etc. Not by dietary intake. It's 3500 calories to gain or lose a pound. Metabolic rate only affects how rapidly you can change. ...Read more
Persevere with it: It is a long term goal which requires persistence with your good eating behavior. It will slowly give you the results you want but be pateint and aim to lose about 1 pound each week or over 2 weeks. Add regular exercise to your low calorie eating, you will see better results from the combined efforts. Good luck. ...Read more
Just go ahead and do: There is no magic formula. Just proceed yet eat healthy which means low fat diet with ample amount of proteins which come from eggs, tofu, low fat milk and yogurt and fish. Add to it ample amount of veggies and fruits with each meal, you will do well for your long term good health. ...Read more
Diets: Fad diets are marketing ploys to promote a concept that has more to do with making money than with a well-balanced diet that promotes long-term compliance conducive with a healthy lifestyle. Many of these diets are also low calorie diets. A low calorie diet is a diet that provides extremely low calories in order to produce significant weight loss. They can be unbalanced and cause problems. ...Read more
It's all relative.: For very low calorie diets, potatoes are relatively high calorie [1 cup of diced potato is 55 calories] compared to 1 serving of turnips or even better deal cooked radishes/daikon. But potatoes are a good deal compared to 1/2 cup of white rice [120 calories], 1 cup of noodles, bread or bagels. So it depends on how low you're trying to go. ...Read more
Not necessarily: In many cases the low cal diet can signal to the thyroid that you are in starvation mode thus preventing weight loss. A surer way to lose weight is by eating a meditteranean style diet minus any grains containing gluten and including low glycemic foods. Eating 3 meals and 2 snacks may show more results than calorie counting. Let me know how you do. ...Read more
Difficult: Low-carb diet is likely to promote weight loss, at least at first, but risky. Weight loss may or may not continue long term, depending on your commitment to following the eating plan. If you abandon the low-carb diet and return to your former eating habits, you may regain any lost weight. ...Read more
Anorexia = illness:
Being on a low calorie diet = being on a diet that is low in calories.
Anorexia nervosa = believing that one's body is abnormal contrary to perceptions of others (example: someone who is very thin insisting that he/she is too fat); obsessing about possibility of weight gain; insisting on being underweight, even if it is affecting his/her health severely. It can be a life-threatening illness. ...Read more
A calorie is the amount of heat energy needed to increase a mililiter of water 1 degree centigrade, the calorie we talk about in foods is really a kilocalorie, that is the amount of energy needed to increase a liter of water 1 degree centigrade... So if you eat a food that is 500 calories that food if burned completely has enough energy to heat a liter of ...Read more
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