I like Men's ONe a Day over 50 plus Vit. D up to 1000 IU or so.
Biking and jogging may sway pink, he's fine to continue for now but he may want to back off 6-8 weeks before attempt. WEights are also good for him.
Whatever you like in terms of cereal. I've been living on this stuff lately and I toss in an extra 1/4 c walnuts to make it more protein dense. Product: Cold Cereals - Quaker Natural Granola, Oats & Honey & Rasins | QuakerOats.com