Tag Archives: fire

An Argument for Copious Carbohydrate Content In the Paleo Diet

Salivary amylase helps us digest starches like wheat

Salivary amylase helps us digest starches like wheat

A recent scientific paper proposes that carbohydrates—starches specifically—played a larger role in the ancestral human diet than previously thought. I’ll call this paper the Hardy study since she’s the first named author. The only author I recognize is Jennie Brand-Miller, of glycemic index fame.

A key part of the hypothesis is that our ancestors’ use of fire made starchy foods much more digestible. That’s not controversial. Wrangham thinks hominins have been using fire for cooking for over a million years. Humans, remember, arrived on the scene about 200,000 years ago.

I’m not saying I agree or disagree with the researchers. Read the paper and decide for yourself. I do feel somewhat vindicated in my inclusion of potatoes and other tubers in my version of the Paleolithic diet.

RTWT.

Steve Parker, M.D.

PS: The article references the Pleistocene Epoch. You’ll find various definitions of that, but the Pleistocene ranged from about 1.8 million to 11,000 years ago .

How To Start A Fire With Two Stones

Richard Wrangham figures our hominin ancestors tamed fire and started cooking with it 1.8 million years ago.  A recent article at Slate reviews the debate among anthropologists.  Some respected authorities date our mastery of fire from 12,000 to 400,000 years ago.

Any caveman worth his salt can start a fire, right?

Visit Wildwood Survival for the two-stone technique.

Let me know if you find a video demonstrating this.

How Long Have Our Ancestors Been Cooking With Fire?

“We mastered fire with the invention of matches, silly!”

Earlier this month I mentioned that biological anthropologist Richard Wrangham estimates hominins tamed fire and started cooking with it 1.8 million years ago.

A recent article at Slate reviews the debate among anthropologists.  Some respected authorities date our mastery of fire from 12,000 to 400,000 years ago.

I don’t know the answer, but I’d wager it was much earlier than 12,000 years ago.

—Steve

What Exactly Is the Paleo Diet?

Pure paleo

Let’s be realistic: There’s no way to eat a Stone Age diet these days unless you live off the land, hunting, fishing, and gathering from what’s naturally available in the wild.  Few can do that, although it’s not impossible.  I’m going to specify my version of the paleo diet because I’m starting a paleo diet trial soon—a first for me.

How long has man had fire?  Biological anthropologist Richard Wrangham estimates hominins tamed fire and started cooking with it 1.8 million years ago.  So I’m cooking my paleo foods if I wish.

As with my beloved Mediterranean diet, definitions of the paleo diet vary.  The following guidelines are influenced by my review of blogs or websites by Loren Cordain, Julianne Taylor, Robb Wolf, and Kurt Harris.  The first three are closely affiliated with each other, so expect lots of overlap.  It’s simplest to define paleo by what’s not allowed.

What’s NOT Paleo?

Industrial vegetable oils (e.g., soybean, corn,safflower), legumes, dairy, refined sugars, grains, alcohol, and high salt consumption.

What Is Paleo? 

The focus is on minimally processed, in-season, locally available foods.  Many favor pastured, grass-fed beef, free-range chickens, “organic,” and the like.  I guess that’s fine if you can afford it; I choose to spend my money elsewhere.

Proteins

Meat, fish/seafood, eggs, poultry, and wild game.  Most paleo proponents favor lean meats over fatty ones; it’s debatable. Undoubtedly, our domesticated feedlot animals are fattier than wild game, generally.  Processed meats such as bacon would not be pure paleo, but many paleo advocates allow it.

Nuts and Seeds

Favor those with the best omega-6/omega-3 ratio (2 or 3:1), such as walnuts, almonds, macadamia, and cashews.  Modern humans eat way more omega-6 fatty acids compared to ancient hunter-gatherers.

Fruits and Vegetables

It’s probably best to favor those with lower glycemic index.  Examples are berries, melons, cauliflower, tomatoes, onions, and broccoli.  Most modern fruits and veggies  have been bred for large size and good looks.  Ancient fruits and veggies were smaller and had much more fiber per serving.

Tubers, Roots, Bulbs

These are OK per Cordain, and I agree.  Examples include potatoes, cassava, taro root, onions.  Some paleo proponents exclude potatoes.

Oils

Cordain favors oils such as canola, flax, olive. Others mention avocado oil.  Aim for a good omega-6/omega-3 ratio.  Lard is probably OK although obviously processed.

Herbs and Spices

Many of our favorites should be OK.  Wolf says balsamic vinegar is allowed, although processed, like all vinegars.  Vinegar is “natural,” as you might have noticed if you ever walked through an apple orchard with rotting fruit on the ground; you can smell the vinegar.

Condiments

Undecided.  Note that you can make mayonnaise from olive oil and egg yolk.

Miscellaneous

Olives?  They’re processed, but I’m inclined to keep them in the mix.  Coffee?  Not paleo, but I ain’t givin’ it up.  Consider limiting nuts to one ounce daily since most of them are high in omega-6 fatty acids.  Fresh foods are more purely paleo than canned or frozen, but I’ll not exclude canned and frozen.  Limit fruit?  Probably: in most environments, they’re available only seasonally.  Diet sodas?  Clearly not paleo, but I enjoy one now and then and don’t see any drawbacks to low consumption.

Steve Parker, M.D.

Update October 8, 2012

I learned today that my version of paleo, by coincidence, is similar to the Hartwigs’s Whole30 plan.  But they allow clarified butter or ghee, green beans, and snow peas.  I include potatoes, but Whole30 doesn’t.