How to read and trust nutrient value charts?

I have researched health and nutrition online for a while now, and I work out not only with weights and yoga, but martial arts and mountain biking, as well.

Lately while researching online, I've found that a lot of nutritional value charts conflict in numbers. Some charts say that skim milk contains eight grams of protein, some charts say skim milk contains 13 grams of protein. Which charts are right?? This is incredibly frustrating and confusing. I did find out that there is nutrition software available, but it's so expensive and it comes with lots of extra things that only doctors need really, like making charts for patients and what not.

Also, I found information on one site saying that adults should consume 0.8 grams of protein per however many kilos you weigh (I weigh 82 kilos, so that means 66 grams of proteins per day). Another site said that adult females between 25 to 50 kilos just need 55 grams of proteins per day. Also, it's not just protein intake that conflicts with all of these charts online.

If you can help out at all, it would be greatly appreciated. Thank you in advance.


How can I help loved ones who have bulimia?

1) I've recently just found out that my boyfriend of four years is bulimic... He hasn't told me, but I have put the puzzle pieces together after living with him for the past 18 months... I had even heard him purging in the bathroom while we were on vacation. I'm really struggling with this information and I don't know how to approach him about it... I'm guessing it has been going on for around six years now. How do I confront him about it??

2) I was wondering if bulimics lose weight rapidly, because I have a friend who I think may be bulimic, because she eats, but I think she may be throwing up her food. She has lost 25 pounds in the last month. She binges, and I would like to know how I can help her.


Is Mirena safe for those who have yet to give birth?

I have recently been advised that my on-going migraines might be caused and/or increased by the use of contraceptives containing estrogen. To that end, I have been recommended to switch to a progesterone-only form of birth control. Which, in turn, basically means I get to choose between Implanon and Mirena (I really can't stand needles, so Depo is out for me!). I am only 23 years old, and have not yet started a family. I do want to have children someday, and am very enticed by the idea of Mirena lasting to the point when I might want to begin trying to get pregnant. However, all of the advertisements for Mirena state that ideal candidates have already had children.

Is Mirena still safe for use in women who have not yet given birth? If so are there any additional side effects to consider in this instance?


Can I preserve my fertility?

I've heard so many horror stories of women who wait until their mid-thirties or later to have children, then find out that they are infertile. I'm 25 years old now and nowhere near getting married or having babies, yet I don't want this to happen to me when I'm ready. What can I do now to protect my fertility and make sure I am able to conceive when the time is right? It's causing me a lot of anxiety!!