Feeling weak after starting diet?

Question

So I have been on a diet for the past month because I've been having lots of stomach problems and my doctor said I need to change bad eating habits. Since I started my diet, my stomach has been feeling a lot better and I have lost ten pounds since I started the diet. However, for two weeks now I have been feeling extremely tired. I usually get around 7-8 hours of sleep and have been fine with that amount, but now I've even begun napping during the day (because I am so tired). Is my diet causing this? If so, should I stop?

Here is what I have been eating:
For breakfast I have a bowl of wheat thins and a banana. 
For lunch, either rice, grilled fish and veggies or chicken.
I have a mid day snack, usually either a tuna sandwich or a fruit.
And for dinner usually another bowl of cereal with fruit or a jelly sandwich.
I've also been drinking lots of water throughout the day.

Also, is this diet healthy? I am a bit overweight, so feel good that I've lost some weight, but I am concerned I may have lost it too quickly.

Treesah · Accepted Answer

10lbs in one month isn't too quickly, it's about perfect actually. It takes time for your body to adjust to things, especially when you do a 180 on your eating habits. Give it a bit more time, when I started changing my lifestyle and how I ate I was tired a lot as well, but it's been 2 months and I am starting to feel a lot more energetic. Keep up the good work and congrats on the 10lbs! :)

Josephine · Answer

It didn't happen to me, but I made the change quite slowly. It is probably your body adjusting to the change. Our bodies are kind of funny that way. They get cranky when we change the rules on them. For example, when I started snowboarding, I had the angriest legs ever for a few days afterwards. Even though it was really good for me, I needed to use my upper body to lift myself out of the chair if I had been sitting for more than about half an hour or so. My guess is that it is either the amount of calories you are eating or the balance of nutrients. Even though you are being diligent about protein, etc, you are still likely getting a different balance. Have you tried eating snacks between meals? Of course, I don't suggest eating three large meals and then three substantial snacks, but if you eat a relatively light snack mid-morning and another one mid-afternoon, you might be able to overcome the little slump by keeping your fire stoked. Try an apple or crackers with peanut butter or string cheese. Also, you should definitely be sure that you are getting carbs, protein, and fat at every meal. Good luck!

Anonymous · Answer

Your are depleting your carbs faster than you are taking in carbs. If you are feeling week then it is important to begin increasing the frequency of your meals. If you eat 6 meals a day instead of just 3 then you won't feel tired and you will continue to lose weight as long as you are eating the right foods.  Eating more frequently also encourages your body to burn off your stored fat.

Here's a good resource:

http://www.lipid.org/education/courses/ccrr/assets/DukeLipidClinicLowGlycemicDiet.pdf

Eat only the foods in the Low Glycemic column.

victorialarae · Answer

your diet seems good, but i don't understand where you're getting that your dinners are healthy... neither of those options are good for dinner at ALL. 

have you been exercising? it may be because the carbs you're consuming aren't very healthy. carbs are what gives us energy throughout the day.

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Feeling weak after starting diet?

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