Eating fruit year-round in winter climates keeps insulin elevated, which raises SHBG and binds up free testosterone. Tropical fruit adds estrogenic compounds on top of that. The result: low libido, soft physique, and fatigue even if you train hard, unless you match your diet to the season.
If you're eating fruit and sugar year-round whilst living in a winter climate, your testosterone is paying for it. Here's the mechanism. Constant sugar intake drives chronically elevated insulin. Elevated insulin increases SHBG, protein that binds up your testosterone and makes it biologically unavailable. More SHBG means less free testosterone, less free DHT. So even if your total testosterone looks fine on blood panel, your body cannot use what is bound up. Tropical fruit specifically carries an additional estrogenic load. In a tropic climate with the light and insulin sensitivity to match, your body handles this fine. In a low-light winter climate, it becomes one more factor quietly suppressing your free androgens. This is why someone can train hard, eat clean fruit and protein, and still have low libido, soft physique, and flat energy. It's not a testosterone problem, it's a seasonal mismatch problem. Fix that and the results will come.
