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If you want to boost your natural testosterone levels, it helps to know all the best strategies — both in and out of the gym.

No gym? No sweat! With just a bench and some dumbbells you can combine these 7 moves for a fierce upper-body workout that can be done just about anywhere!

The (nearly) definitive ranking of the best triceps moves ever devised.

Dropping excess weight is good. Dropping weight and picking up muscle is better. This three-month fat-loss workout is designed to transform you from fat to fit in 90 days.

The (nearly) definitive ranking of the best biceps moves ever devised.

The (nearly) definitive ranking of the best chest exercises ever devised

Is your butt lacking brawn? Target your glutes directly with these seven isolation movements.

We rank — and Erin Stern evaluates — our (nearly) definitive ranking of the best thigh and calf exercises ever devised.

The (nearly) definitive ranking of the best delt exercises ever devised.

These delicious cocoa-dipped nuts are also infused with whey isolate to bump the protein content to 10 grams.

Studies found no significant effect on total testosterone, free testosterone or SHBG from soy protein supplements.