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2

Low T

I’m 52 years old and fairly active. Should I assume I have low testosterone and would benefit from supplementing? Or would I need a test to verify?

5

Zone 2

How can I tell if I’m training in Zone 2? Is it based on % of max heart rate?

9

Protein Powder & Heavy Metals

How to find clean powders and which do you take? How to balance the desire to build muscle as we age vs additional risk incurred from taking protein powder (i.e. consuming processed food - does that increase your cancer risk?)

3

ASCVD

Hi there - One more question. I cam across a series of blog articles written by an 'independent researcher'. In it he dissects the theory that LDL, Apo-B and Saturated fats are detrimental and cause ASCVD. He states "2004, O'Keefe and colleagues published a paper called "Optimal low-density lipoprotein is 50 to 70 mg/dl: lower is better and physiologically normal" (1). Despite its numerous flaws, this paper has been cited over 630 times in the literature." The author then proceeds to provide in depth statistics and analysis on why the literature is incorrect and deeply flawed. Wanted your opinion on this

4

Blood sugar

After fully optimizing all factors (from a perfect* diet to exercise to sleep/stress) and discovering tolerance to carbs is low but a low carb diet (at same or greater calories) causes extreme measurable muscle loss (through DEXA) - how can you resolve? What do you do when you have to choose between balanced blood sugar (low carb) and maintaining and growing muscle (a need for carbs)?