This depends how fast evolution happens, and I'm not an evolutionary biologist.
It seems reasonable to think meaningful evolution happens over the course of centuries (especially because there was rapid population growth over the time period in question). It's not obvious to me what the impact of gut flora is, though- I would expect their generations to be much faster (thus it would be reasonable to imagine there are potato-optimized bacteria even if there aren't potato-optimized humans yet) but it seems that the more your microbiome matters the less your evolutionary heritage matters.
But regardless, many aspects of a modern diet (e.g. food additives) are very new, and not present in anyone's ancestory.
Agreed, with the observation that the 'traditional' diet doesn't include those either. My claim is that I'd expect an Irishman to be better off eating 10 pounds of potatoes a day than eating at McDonald's every day or eating an all-meat Paleo diet.
My claim is that I'd expect an Irishman to be better off eating 10 pounds of potatoes a day than eating at McDonald's every day or eating an all-meat Paleo diet.
Do you mean just potatoes? Doesn't seem to be a very balanced diet. And paleo diets are not all meat - humans are naturally omnivores.
Over the past few months I've been working to optimize my life. In this post I describe my attempt to optimize my day-to-day cooking and eating - my goal with this post is to get input and to offer a potential template for people who aren't happy with their current cooking/eating patterns. I'm a) still pretty new to LW, and b) not a nutritionist; I am not claiming that this is optimal, only that it is a step in the right direction for me. I'd love suggestions/advice/feedback.
Goal:
How do I quantify a successful cooking/eating plan?
Healthy
"Healthy" is a broad term. I'm not interested in making food a complicated or stressful component of my life - quite the opposite. Healthy means that I feel good, and that I'm providing my body with a good mix of building blocks (carbs, proteins, fats) and nutrients. This means I want most/all meals to include some form of complex carbs, protein, and either fruits or veggies or both. As I'm currently implementing an exercise plan based on the LW advice for optimal exercising, I'm aiming to get ~120 grams of protein per day (.64g/lb bodyweight/day). There seems to be a general consensus that absorption of nutrients from whole foods is a) higher, and b) less dangerous, so when possible I'm trying to make foods from basic components instead of buying pre-processed stuff.
I have a health condition called hypoglycemia (low blood sugar) that makes me cranky/shaky/weak/impatient/foolish/tired when I am hungry, and can be triggered by eating simple sugars. So, for me personally, a healthy diet includes rarely feeling hungry and rarely eating simple sugars (especially on their own - if eaten with other food the effect is much less severe). This also means trying to focus on forms of fruit and complex carbs that have low glycemic indexes (yams are better than baked potatoes, for example). I would guess that these attributes would be valuable for anyone, but for me they are a very high priority.
I'm taking some advice from the "Exos" (formerly Core Performance) fitness program, as described in the book Core performance essentials. One of the suggestions from this that I'm trying to use here (aside from the above complex carb+protein+fruit/veg meal structure) is to "eat the rainbow every day" - that is, mix up the fruits and veggies you eat, ideally getting as many colors per day as possible. I'm also taking advice from the (awesome) LW article on increasing longevity: "eat fish, nuts, eggs, fruit, dark chocolate."
When possible I'm trying to focus on veggies that are particularly nutrient dense - spinach, bok choy, tomatoes, etc. I am (for now) avoiding a few food products that I have heard (but have not yet confirmed!) are linked to potential health issues: tofu, whey proteins. Note that I do not trust my information on the potential risks of these foods, but as neither of these are important to my diet anyways, I have put researching them as a low priority compared to everything else I want to learn.
So to recap: don't stress about it, but try to do complex carbs, proteins (120g/day for me), fruits, and veggies in every meal, avoid sugars where possible (although dark chocolate is good). Fish, nuts and eggs are high priority proteins.
Cheap
I'm on a fairly limited budget. This means trying to focus on the seasonal fruits and veggies (which are typically cheaper, and as an added bonus are likely healthier than the same fruit/veggie when out of season), aiming for less expensive meats, and not trying to eat organically (probably worth a separate discussion of organic vs not, meat vs not). This also means making my own foods when the price benefit is high and the time cost is low. I often make my own breads, for example (using a breadmaker) - it takes about 10 minutes of my time, directly saves me about 3+ dollars or so compared to an equivalent quality loaf of bread (many breads can be made for ~$.50-1$), plus saves me either the time of shopping multiple times per week to obtain fresh bread or the grossness of eating bread that I've frozen to keep it from molding. Additionally, my budget means that I prefer that my weekly meal plan not depend on eating out or buying pre-made foods.
Quick
While I'm on a fairly limited monetary budget, I'm on a very limited time budget. Cooking can be fun for me, but I prefer that my weekly schedule not REQUIRE much time - I can always replace a quick meal with a longer fun one if I feel like it.
The Plan
My general approach is split my meals between really quick-and-easy (like chickpeas, canned salmon, and olive oil over prewashed spinach with an apple or two on the side) and batch foods where a somewhat longer time investment is split over many nights (like lentil stew in a crockpot).
To keep myself reasonable full I need about 6-7 meals per day: breakfast, snack, lunch, (optional snack depending on schedule), post-workout snack, dinner, snack. These don't all need to be large, but I'm unhappy/unproductive without something for each of those meals, so I might as well make it easy to eat them.
In general I've found the following system to fulfill my criteria of success (healthy, cheap, quick), and it's been much less stressful to have a general plan in place - I can more easily figure out my shopping list, and it's not hard to ensure I always have food ready when I need it.
Breakfasts
Quick and easy is the key here. I typically have either
Lunch
I have three "batch" meals here (I make enough for 3+lunches, so I cook lunches ~twice a week):
Dinner
I aim to make one batch dinner per week and have it last for 4-5 meals, and then have several quick-and-easy dinners to fill the gap (this also makes it easy to accommodate dinners out or food related social gatherings).
Some ideas for Batch Dinners (crock pots are your friends here):
Snacks
In general my snacks are super simple: just combine some kind of munching veggie (carrots, bell pepper, raw broccoli, snap peas, etc) with hummus, some fruit item, something protein-y (handful of nuts or sunflower seeds, usually) and (optionally) a slice of bread or other carb source. For whatever snack I have after a workout, I want to make sure there is plenty of protein, so I include either hard boiled eggs, baked chicken, or salmon (on bread).
Implementation
So over the weekend, when I plan my week and go shopping, I choose the following:
Conclusions
I'm still tweaking my system, but it has been a marked improvement from the last-minute scrabbling and suboptimal meals that tended to characterize my eating before this. It's also a big step up in terms of utility from the more elaborate and time-consuming meals I sometimes cooked to compensate for feelings of inadequacy generated by aforementioned scrabbling/suboptimal meals. I tend to feel fairly energetic and healthy, and it's a huge reassurance to me to know that I always have food planned out and typically it's available to me without needing to do any cooking. It appears that it's considerably cheaper, too, although there are several confounding factors that would also drive my grocery bills down (transitioning to not-organic foods, trying to hit sales, etc).
Are there things I'm missing? Suggestions for meals? (note that I'm a bit wary of meal-replacement shakes) Alternative systems that people have found to hit that sweet spot of healthy, quick, and inexpensive? Is this something that might be useful for you?
EDIT: Tuna is high in mercury, and shouldn't be eaten in nearly the quantities I had originally planned. I've replaced canned tuna with canned salmon.