Hiya Scotch
1) Looser pants is a good idea but also no hot baths/showers or a hot house or anything. He shouldn't ever feel too warm and sweaty unless exercising.
We bought a couple of fans so that hubby is always cool.
2) Multi-vits are a must but he probably also needs a higher dose of anti-oxidants like vitamin C. I'm sure hubby was advised to take 1000mg extra Vit C but instead we have taken a supplement called Pycnogenol after Bead suggested her hubby used it and had a huge improvement in his sperm numbers.
I must stress that my consultant told hubby not to take Pycnogenol because they haven't tested it, but there are actually a lot of studies on it so we are taking it anyway in secret.
3) Phone and laptops are a no no.
4) Don't cut out sex! You want to be doing it every other day without fail (get his to sort himself out if you're not in the mood) and then in advance of providing a sample miss two full days and on the third day give the sample.
If he doesn't go often enough, the sperm cells die and are reabsorbed into the body but they also produce toxins.
5) No caffiene. At all. None. No coffee. No fizzy drinks (except water and lemonade and maybe caffiene free variations). No dark chocolate.
6) Low GI diet. This is mainly for my hubby as he has diabetes, but irregular blood sugar can cause a lot of problems in general. So no sugar and stick to brown carbs.