Why eating too little calories is a bad idea.....

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  • alteredsteve175
    alteredsteve175 Posts: 2,725 Member
    Bumpity bump bump!
  • Orphia
    Orphia Posts: 7,097 Member
    Bump!
  • alteredsteve175
    alteredsteve175 Posts: 2,725 Member
    Bumpers!
  • tombradysbc
    tombradysbc Posts: 1 Member
    Can I gain muscle while losing weight? Thanks
  • alteredsteve175
    alteredsteve175 Posts: 2,725 Member
    Threads that go BUMP in the night!
  • dontcallmecandi
    dontcallmecandi Posts: 17 Member
    Interesting. I am losing extremely slowly (25 lbs since January) and I never eat my exercise calories back.

    SW: 252
    CW:227
    Goal: 150 ish?

    Daily calories allotted by MFP 1500 (ish)- I have a desk job where I sit most of the day. I always eat my calories allotted. On days I exercise it looks like 1500 calories, 400 for working out, 1900 total but I always try to have approximately my exercise calories remaining when I end the day. Does that mean I only ate 1100 calories because of the exercise?
  • NovusDies
    NovusDies Posts: 8,940 Member
    Time for this to take another stroll through page 1.
  • chris_in_cal
    chris_in_cal Posts: 2,517 Member
    bump
  • kimny72
    kimny72 Posts: 16,011 Member
    Bump
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    :smile:
  • LivingtheLeanDream
    LivingtheLeanDream Posts: 13,342 Member
    bumpity bump
  • alteredsteve175
    alteredsteve175 Posts: 2,725 Member
    Bump in the night!
  • FireyChimera
    FireyChimera Posts: 155 Member
    This is why I don't count calories :) I eat healthy foods until I am satisfied!The body knows what it needs
  • barneshall
    barneshall Posts: 764 Member
    I have been on MFP since 2011 but only used it properly and the forums for the last 6 months, the number of posts I see (mostly) from women eating 1000 calories and under or netting less per day when they could lose by eating a higher and healthier intake is heart-breaking. When I used MFP in the past and was a serial starter, I have eaten quite low calories (Around 1300) because I hadn't really a clue what I was doing so I hope this post goes some way to educating those who think that the only way to lose weight is to starve yourself and it will save me typing out the same response repeatedly :lol:

    What is a healthy weight for you and what rate of loss is healthy?
    The BMI range is a good place to start. You can calculate your BMI here http://www.nhs.uk/Tools/Pages/Healthyweightcalculator.aspx
    US & UK departments of health* recommend a steady weight loss of 1-2lb per week for those who are obese. If you have any medical concerns it's best to consult with your doctor.

    The science behind weight loss/maintenance/gain
    If you're new to MFP you may or may not have heard the term CICO being thrown around.
    CICO is an energy balance of Calories In & Calories Out.
    To lose weight your CALORIES IN must be less than your CALORIES OUT (CI<CO)
    To maintain weight your CALORIES IN must be the same as your CALORIES OUT (CI=CO)
    To gain weight your CALORIES IN must be more than your CALORIES OUT (CI>CO)

    Understanding how your calorie allowance is calculated8kn2ubmrqx6s.jpg

    Eating low calorie but still not losing weight
    There are many posts already on this subject but in summary, those who are eating low calorie and not losing weight, for the most, this is down to logging inaccuracies either in underestimating calories in or overestimating calories out. Using measuring cups or estimating/eyeballing portion sizes are very inaccurate ways of calculating the calorie content of meals. Using the MFP database/Machine Readings/Non-HR fitness trackers for calorie burns can also be an inaccurate method of determining burns.

    Net Calories and Eating Exercise Calories Back
    Your initial calorie allowance is essentially a net figure - the way MFP is set up you are intended to eat back your calories burned as they are not accounted for in the calculations to acquire the figure. If you ate none of your exercise calories you are putting yourself in a larger deficit than you have set yourself in MFP. This may be ok if you're set at lower rate of weight loss, however if you're already at 2lb per week loss (1000 calorie deficit) then you could be getting less food than you need to fuel your body sufficiently. Going back to "Mildred" above if she didn't eat any of her calories back she would be netting under 850 calories on her active days and this would no doubt impact her energy levels and her running performance.

    The Negative Effect on Weight Loss from Undereating
    Some people may well be able to stick at a 1000+ calorie deficit for long periods of time, however for a lot of us what actually happens when you are being overly restrictive is that we can only manage it for a short while because it's too drastic and we are simply hungry so we decide to pack it in and go back to the way we were eating before and end up in a vicious cycle of binge and restrict that doesn't actually achieve anything.

    The Short & Long Term Effects of Undereating Without Medical Supervision
    In the short term undereating can have the following effect (this is by no means an exhaustive list):
    • Mood Swings
    • Fatigue
    • Constipation
    • Hair Loss
    • Menstrual Irregularities
    • Dizziness
    • Brittle Nails
    • Poor Skin Condition
    • Headaches

    In the long term it can have far more negative effects, such as:
    • muscle loss
    • gallstones
    • electrolyte imbalances
    • organ damage
    • bone density loss
    • vitamin/mineral deficiencies
    and whilst you might feel fine now, there is not always an advance warning of the long term effects.

    Other useful posts that can be read in conjunction with this one:
    Accurate Logging
    Weight Loss is Not Linear
    Why am I not losing weight?

    *https://www.cdc.gov/healthyweight/losing_weight/index.html *http://www.nhs.uk/Livewell/loseweight/Pages/should-you-lose-weight-fast.aspx

    I have been told by a dietician that I am not eating enough, I usually have 3/400 calories spare on an exercise day (3days per week) I have lost only 1.2 kilos in the last 8 months so if I start eating back the calories burned as per MFP, Will I put on weight? How long will it take to adjust? Any thoughts please, I feel quite lost
  • alteredsteve175
    alteredsteve175 Posts: 2,725 Member
    Bumpage.
  • dianefinnegan1
    dianefinnegan1 Posts: 9 Member
    I have a hard time reaching my 1200 calories a day. I was banded back in 2007 and tho I have put on about 20 pounds since my initial weight loss, I feel full with the amount I am eating with all the fat and under 20 carbs per day. I guess I will be able to gauge if I am not eating enough if the scale doesn't move???
  • PAV8888
    PAV8888 Posts: 14,232 Member
    edited December 2019
    barneshall wrote: »
    I have been told by a dietician that I am not eating enough, I usually have 3/400 calories spare on an exercise day (3days per week) I have lost only 1.2 kilos in the last 8 months so if I start eating back the calories burned as per MFP, Will I put on weight? How long will it take to adjust? Any thoughts please, I feel quite lost

    This may be more suitably discussed in its own post as opposed to as part of this much longer thread.

    @heybales has discussed some good points above; but, in general, if you are receiving professional advice from a registered dietician who has seen you in person and knows your case history and is caring for you on an ongoing basis... how can our generic and faceless and varying quality non professional opinions and suggestions override that advice?

    Now if you've tried that advice and it doesn't work, or are asking if you should seek a second professional opinion because the first one sounds outrageous, then I can see crowd sourcing answers on the internet.

    But in your case I would address your concerns with the advising dietician and ask them directly to explain the mechanism that under pins their advice and why they think it applies to your case. There is a good chance that it may.
  • dianefinnegan1
    dianefinnegan1 Posts: 9 Member
    heybales, I have increased my calories but now I find I go over on fat. What happens then??? I am still learning how to put food together to try and get as close as possible to cal, carb, fat and protein. Can you go over on fat and still loose??
  • PAV8888
    PAV8888 Posts: 14,232 Member
    edited December 2019
    heybales, I have increased my calories but now I find I go over on fat. What happens then??? I am still learning how to put food together to try and get as close as possible to cal, carb, fat and protein. Can you go over on fat and still loose??

    For weight management only your calories matter.

    For health reasons you may choose to emphasize some macros more than others.

    I generally consider my (set to default) MFP goals as calories are what I want to manage, protein= a desired minimum, fiber=a desired minimum, sodium= something I wish I would not exceed as often as I do, and since I am usually neither very low or very high in terms of total fats, I view then as something where I don't want my saturated fats to be too high, i.e. I would like to see them under 15 grams for myself