Is there anything wrong with the diet I've planned for myself?

Current weight: 158, Height: 5'6

Age:17, Vegetarian

Live in the city --> lots of walking, carrying groceries and heavy bags, etc.

Somewhere between sedentary and light activity when not working out (calculated below as additional)... This site's tool says 1800 or 2100 depending on which setting... but this is for adults?  Another site, which is for kids and teens, says 1940 for inactive, 2350 cal for low activity (less than 1hr), and 2730 for moderate (1hr per day)... so I don't know who to trust.  I'll just say 2,000 a day???  Don't want to cut myself short and screw my metabolism, or say too much and not lose as much as I can.

Eat around 1,200 calories a day (I usually get a bit more, within 100), minimum of 25g fiber (I usually get over 30g), aim for 55g protein (I usually get minimum 60, sometimes as high as 80).  Always eat breakfast, lots of water. I also spend time in the sauna and steam room, stretching.... I also heard it's good for your metabolism (brings your heart rate up), but who knows, I'm not counting it.

2,000-1,200 = 800 per day lost

=5,600cal/week

Cardio 5x a week --> stationary bike, 30 minutes, within the 65-80% target heart rate (135-172 beats per minute)... I'm usually at the higher end, at about 158-168 beats per minute for the vast majority of the 30min session...Today the machines said I bikd 12.6 miles, but when I did the math, that speed was so high it wasn't permitted in calorie calculators (26 mph)... maybe the bike is very inaccurate?  then I have no clue how many cals I'm burning here. It said 200 on the machine, but 30min at 17.5 mph is like 500cal...

so anywhere from 1000cal/week to 2500cal/week

Strength training 2x a week, 7 nautilus machines, full body workout, 10-15 reps each, repeat 3 full sets <---- do this after cardio when my muscles are warm, but after I've stretch a bit

=400 cal/week

Yoga 5x a week, 1 hour each

=800cal/week

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5,600+400+800 = 6,800 already, almost 2 pounds, which is my goal per week (because it's the max).... but that's not couning the cardio..

so 7,800-9,300 cals a week, 2.23 lbs-2.66 lbs. per week.

So, obviously that's too much, my metabolism will freak, etc... so what's inaccurate, what should I modify?

eat more when you do cardio- try to keep your daily cal deficit 800 at the most, mre than that will work for a while but your body will still do in starvation shortly. go by day when your figuring this stuff out, not week, becasue your metabolism can shift in two or three days so you need to take it by day. what kinds of food are you eating? calorie counting is good- but you have to consider the kinds of calories your eating too.

 55 grams of protein is okay but if your strength training is pretty seriious (u are trying to build muscle) up it to about 100 grams. active women who lift should usually aim for about as many grams as lbs they way, but i find a little less than that works fine for me.

keep up the cardio, but dont forget not to go overboard with a deficit.  if you are 17, this site will probley be a little inaccurate in couting your cals burned- i'd go with the other site- teens have and use more energy. 1200 cal a day is too low! your too active for that. on days you don't work out try about 1500-1600 min, more if your not afraid. a decent rule of thumb is to add about 200 cal to your daily intake for every hour you spend being considerably active (cardio or lifting, ect). so it looks like you need to be eating around 1800 a day. thats my advice.

 another major metabolism factor- i'm sure youve seen it leftand right- but eat small meals every 2-3 hours, it staves off hunger and boosts the metabolism. eat protein and carbs at every meal but no carbs before bed. try to eat your last meal around 6 or 7, no later than 8 unless your staying up really late.

I think you mean grams of protein for every KG, not lbs., of body weight... and then you multiply it by .8 if you're sedentary, or others for other levels of activity... but I don't wnat to eat too much of either fat/carbs/protein because then it's converted to fat and stored....

So I need 140 according to this site.. http://my.clevelandclinic.org/healthy_living/ Exercise/hic_Too_Much_or_Not_Enough_Protein_N eeds_for_the_Athlete.aspx

It's so hard for me to get that amount.  I got 80 today... at 1200 cals.  I could get 110 at 1370 cals... 140g at 1540... but i'm afraid to eat that much...

I'm also not explicitly trying to building muscle, but to tone and keep what muscle I have active...

I'm a vegetarian, it's VERY hard for me to get 100 g of protein a day while dieting.  I don't drink milk or eat eggs either, but I will eat products which contain them (I'm not a vegan, just don't like the taste of pure milk/eggs)....  nuts are great, but high in cals and excess fat, which I can't afford right now.  I eat lots of protein bars (12-20g protein each)

I also eat before and after I work out... usually involving protein. If I can, a bar before and after.

As a vegetarian you probably already know this, but make sure youre getting enough iron in your diet, as becoming anemic could really hinder that work out regime!

Anyone else?

you definately need to eat more.  I'm similar stats to you but a little older (20) and I lose very well at 1600-1700 plus a bit more on days i exercize hard.  Since you are a teenager and a little heavier than me (Same height) you should be eating even more than that.  I think youll find that if you eat more you will have much more energy to work out well, and youll probably lose more too, not to mention being healthier and able to get in the nutrition you need.