Aging-related inflammation is not universal across human populations

You are imagining that the article said anything about gluten having anything to do with inflammation.

The article did not say anything about going vegan.

The Bolivian and the Malaysian tribes ate a whole food, plant based diet that was not exclusively plant based. They are on 2x the fibre of anyone in the West and they are not eating farmed animals that have been fed with commodity crops such as corn.

What this means is that their diet is incredibly low fat, and your summary does not point to that.

Regarding protein, animals get their protein from plants, and, if you eat enough plants, you will get enough protein unless it is processed. See Beri-beri and how that came about with American rice that lacked protein.

In the West, where we wash our food, we need a souce of vitamin B12, which can either be supplemented or come from meat. Plants have no need for vitamin B12 so they don't have any, even though they have everything else we need. If you don't wash your food then there is an abundance of B12 from bacteria in dirt, so it is not a problem.

Note that the tribes don't consume dairy, which is no surprise. Even the Romans thought it was a bit weird when they got to England to see grown men drinking milk from cows. In Rome the heat made that dangerous due to bacteria that get to the milk first, but the Celts had built a lifestyle around milk and they became lactose tolerant, to some degree.

Few claim to be lactose tolerant in adulthood, but how lactose tolerant are they? Really it is not a physiological tolerance, but a mental one, an acceptance that odd rashes and a digestive tract that works less than perfectly is normal, when it isn't. Milk is for babies, and it is species specific.

Anyone that tells you otherwise is just a victim of milk marketing and has not left milk out of their diet for long enough to realise that life without dairy is better.

Sugar is not the root of all evil, it just rots your teeth and feeds yeast-like bacteria all the way down your digestive tract. It is the combination of excess fat and sugar that is to be avoided if you want to avoid diabetes and all of the other non-communicable chronic diseases.

In summary, stay off the processed foods and stick to the government guidelines for nutrition.

You'll get a lot of total proteins, but you'll have a very unbalanced amino acid intake unless you're going heavy on soy. Which most societies had no access to until recently.

> In Rome the heat made that dangerous due to bacteria that get to the milk first, but the Celts had built a lifestyle around milk and they became lactose tolerant, to some degree.

Interesting thing: in a lot of hot climates (Greece, India, Middle East as a whole) heat and bacteria worked together with milk to give us a pretty interesting food product: yogurt. And the bacteria in yogurt is often considered to be beneficial.

> stay off the processed foods and stick to the government guidelines for nutrition.

In the US at least, until recently, the government recommended 11 servings of grains a day. 3 servings of dairy as well.

I think the only real conclusion to make here is: we don't know anything about what foods are healthy, and probably won't in our lifetimes. Everything is fad driven to some extent. Saturated fats were evil and sugar was good. Then sugar was evil and oils were healthy. Now cooking things with solid blocks of beef fat is being done to Make America Healthy Again(tm) because a single serving of seed oils will give you cancer. In a few years the idea of a Malaysian tribal diet will be mainstream and the true solution to becoming healthy again. Then we'll find out, like all diet studies before it, that there's some odd compounding factor and it turns out diet really had nothing to do with the difference.

Open the news any given day and there's an article about red wine and coffee being great for your health. The next day there's an article saying a single sip is disastrous to your health. The day after that, 6 glasses of wine and 4 pots of coffee are the minimum daily intake necessary to stay healthy. The following day, having ever been near wine will ruin your health forever and you are doomed.

Eat what doesn't make you feel or look like shit. We all have different bodies. If what you're eating makes you tired or you're getting unexpected weight gain, try something else. If you feel energized and comfortable in your body and you're at a healthy weight, you're probably okay.