So of course am going to make sure my boys have baselines.
He just turned 16. According to Dr he is in tanner stage 4. His t number just seem low esp if in tanner stage 5.
I know as you growing Numbers may not be stable. I do have 2 16 year olds interesting what his will be. I’ll post soon.
Thoughts?
Way 2 go and thanks for sharing. Your son is fortunate to have you looking out for him. Completely constructive comment: I cringe when I see all that great work to get the LC/MS TT number then that’s coupled with total garbage “direct” free T assay!
Go get the equilibrium dialysis[current Gold standard but not harmonized between labs yet] free T assay then you can compare directly against online calculators as shown below (pretty decent agreement between the two given your son’s SHBG and TT and assuming HSA of 4.3 g/dL). Also if you really want to compare accuracy between methods you can get all in one with the LC/MS TT combined with ultrafiltration. Would be quite interesting to see how ED and UF compare on the same blood sample.
FYI, your data is another great example of the direct fT assay being off by a factor of typically 6-7 vs calculated fT or the ED free T measurement. It is not a units issue at Labcorp as I have mentioned many times. The direct fT assay is measuring something that correlates with fT, it is NOT measuring fT.
Great work getting the SHBG along with LC/MS TT. Science nerd dream is to get TT by ED and UF then compare with calculated values as well. In 30 years your son will be the envy of all when he whips out the data.
Good albumin was actually 5.1 in a test he did a month ago. I’ll recheck calculator
Testosterone levels peak around 20.
So you think his levels are fine and should be on the way up?
Correct.
I will update this thread hopefully in 1 year and post 17 year old labs. I expect they would double. We always say we want the levels of a 18 year old so we will see a real case.
Btw boys are fit and athletic.
I will also post his twin Shortly
This is something I plan to do with my son as well. I feel like I was low well before I ever checked, and I know my dad has been low t for a while and never done anything about it. So, might as well be proactive.
On the right track. I plan on testing my child in his teens, just to have proper baselines. He shouldnt have to walk this earth with no clue of his health. Good work
This is great. Wish I could go back and get labs at 16-22. Good also to see, like you said, what a healthy 18 year old level actually is now
Pretty funny actually, OP is expecting his son hits double his current level (~350 * 2 = 700 ng/dL) at age 17. From all accounts he sounds healthy and athletic. What if doesn’t and tops out at 400 ng/dl? There’s a decent chance this will be the case.
The math is literally right here:
Strange we sometimes equate higher natural TT levels (even subconsciously) with more vigor and health when that’s not always the case. It’s quite altogether individual. Similar to wishing your son to have a 9" member. I can tell you it’s not all its cracked up to be and sometimes very inconvenient.
Thanks again for sharing the data @trtwuzup .
A graphical version similar to the data in the table above. Convert to ng/dL by multiplying the number on the y-axis (ordinate) by 28.84.
I see what you did there 
Agreed. I’ve seen youtubers in great shape post labwork with TT in the low 400-600ng range, and some in the 900-1000ng range. All look fit, like bodybuilders. The TT is only one factor.
I saw one guy, your nemesis, let’s say, post a video with his 17 year old son where he postulated that because he was fit and athletic, his TT must be high, and if his TT was high then his e2 was certainly high, so the video premise was “my 17 year old son feels great with high estrogen!” Total nonsense, and he didn’t get any lab work to back it up. My comments on that video got me banned from their group lol
I think I know the guy you are referring to. That example sounds like something he’d say. You are correct in him being a nemesis simply because I was never able to help him construct a logically sound argument. Hell I give him credit though…he has testicular fortitude like a shoe salesman showing up in the OR to do brain surgery with no trepidation whatsoever.
@gossamer: darn it you have cursed me. Another perfectly good analogy ruined by a typo [fixed]. I’ve got to stop with this using T-Nation via phone.
So here is his twin brother.
Total t 409
Direct free t 15.3
Shbg- 14.3
Lh 4.4
FSH 2.3
Albumin 5.1
Other son posted higher in thread:
Total t 346
Direct free t 14.9
Shbg- 15.6
Lh 4.2
FSH 2.1
Albumin 5.1
My son is bragging already that he has more than his brother
Do you have a NINE inch erect penis?
WHAT!
Relatively speaking, how developed are they for their age?
Late bloomer, normal, above the norm?
These levels aren’t bad for 16, very wide discrepancy regarding “normal” at that age. If they’re 17+ and you’re looking at say… Sub 320ng/dl you MIGHT have a problem if they’re clinically Symptomatic
Measure each one of your son’s TT levels each day for a week and then do a means comparison using student’s T test (or Tukey HSD if you really want to get fancy). Right now your son doesn’t have the data to support his bragging to his brother that he’s really higher in T. You can give temporary relief to your other son and teach them both about descriptive statistics and hypothesis testing.
And another wonderful lesson: “gotta pay to play!”
