I found this protocol from the book “4-Hour Body” by Tim Ferriss as being the easiest to increase the sacred T:
Protocol #1: Long Term and Sustained
**Blue Ice Royal Butter Oil / Fermented Cod Liver Oil Blend Capsules: 2 capsules upon waking and 2 capsules before bed
**Vitamin D3: 3000 to 5000 IU upon waking and before bed (6,000 to 10,000 IU per day) until you reach blood levels of 55ng/ml. Can test this at home if you like, or just ask your doctor for this easy test.
**Short ice baths and/or cold showers: 10 minutes each, upon waking and right before bed
**Brazil nuts: 3 nuts upon waking and 3 nuts before bed