Many of the episodes from season one focused on either bizzare food or drug consumption and made me feel what Parry was feeling and taste what he was tasting. I often grimaced when he was eating strange foods and felt excited/scared with him as he was going on long, difficult drug trips.
Parry is often criticized as being a long term tourist, but it seems to me like he is engaging with the tribes on levels that a tourist would not, or is everyone who leaves their home town considered a tourist?

The first episode of season two really disproved perceptions that he is a tourist--he returns to the area to find out more about the conflict he only touched on in the first Suri episode.

This time he does a better job of focusing on both men and women's roles (something he had not done too much of before) but the focus on bizzare food and/or drugs was gone (although there was a lot of blood drinking). Did that add to Parry's credibility as a participant and activist rather than a tourist and entertainer?

The blood drinking was the only bizzare food, but I found myself reacting strongly to the thought of eating coagulated blood...the blood also seemed like a metaphor for all the blood shed in the area and so had even deeper meanings than the food consumption in other episodes from season one (like rat cake from the Adis episode)

I certainly don't feel that Bruce is a tourist in Going Tribal... there is no sense at all, in my mind, that the show is meant to be a travel narrative, but rather interactively ethnographic (if that makes sense?). If the show's purpose is to educate about the culture in question, it does so both by emphasizing cultural differences (with bizarre foods, customs, drugs) but also human similarities like humor and family ties.
i think that the show is a definite improvement on the run-of-the-mill tribal documentaries I've seen --- Bruce's earnest involvement in the tribe and the tribe's attitudes toward him in their interactions are the defining attribute. He is often considered a family member and does things with his hosts that no tourist would put up with (probably much more than is seen on tape) and coping with bizarre foods is part of that since he isn't eating western foods on the side.
I don't feel that so-called primitive cultures should be made alien in media to the point that everything they do seems backward and disgusting, and while Bruce gags or laments certain customs that make life unnecessarily hard for the people he visits (like relying on herding rather than fishing in drought-ridden areas), he also fully respects and comes to understand why the people act the way they do.

The return to the Suri in 2.01 was definitely great to watch and the insights gained from visiting their enemies was for me the first time the same person has given both sides of such rivalry. Tourist? Maybe the first few days, but never the full length of Bruce's stay.