LowCarbDiet101

Low Carb Diet 101

Low carb diets have been popular on and off since the dawn of the Atkins fame (and maybe even earlier?).

 But, what exactly defines low carb? Does eating this way actually help with weight loss? Are there any other health benefits (or risks) to eating fewer carbs?

Let’s see.

What is a carb?

A carb, or carbohydrate, is one of our three main macronutrients. Carbs, along with protein and fat that are needed for optimal health in quantities larger than vitamins and minerals which are micronutrients.

Carbohydrates come in three main types:

  • Sugars
  • Starches
  • Fibre

Sugars are the smallest (molecule) carb. There are many different kinds of sugars, beyond the well-known table sugar (sucrose) or fruit sugar (fructose).

Starches are longer chains of many sugars bound together. Starches are broken down by our digestive enzymes into sugars. These sugars are then absorbed and metabolized in much the same way as if we ate sugar itself.

Fibre, on the other hand, is also a long chain of sugars, but these are not broken down by our digestive enzymes. Fibre passes through our system, feeds our friendly gut bacteria, and then takes food waste out the other end.

Because fibre isn’t digested like sugars and starches, it’s often excluded from the carb calculation.

How we metabolize carbs

When we eat carbs, our body absorbs the broken down sugar into our blood, thus raising our blood sugar. Depending on how high and fast our blood sugar rises, our body may release insulin to tell our cells to absorb that sugar out of our blood and use it as energy now or store it for later.

This is part of the theory as to why eating low carb diets may help with weight loss – by preventing the release of insulin, thus preventing the storage of excess calories.

But, our bodies are a bit more complicated than that!

Low carb for weight loss?

A few studies recently put low carb diets head-to-head against low-fat diets for weight loss.

Guess what they found?

  1. There isn’t one universal definition of low carb (see the next section below).
  2.  It’s more difficult for people to stick to low carb diets than low-fat diets.
  3. Both diets work for some people, and neither one is overwhelmingly better for weight loss than the other.
  4. The number of calories people eat is still considered a huge factor when it comes to weight loss success – more than whether the calories are from carbs or fat.

How many carbs is low carb?

There isn’t one single definition.

The average American eats about 300 g of carbs per day. Some people consider eating under 250 g of carbs per day to be the first threshold of a low carb diet. That’s really not that low in carbs, it’s lower carb, rather than low carb. Plus, if you’re new to cutting carbs, this level is easy to maintain and a good start (if you want to cut your carbs).

Taking that a step further, eating less than 150 g per day of carbs is considered a typical low carb diet.

On the extreme side, eating less than 50 g of carbs per day is considered to be very low carb – it falls under the ketogenic diet range. Eating so few carbs can actually change your metabolism into a ketogenic state. Eating this way can be difficult for many people to maintain.

Other health benefits of low carb diets

Low carb diets have the benefit of preserving muscle mass during weight loss. They can also improve heart health biomarkers like cholesterol and triglyceride levels.

Not to mention that eating fewer carbs can improve how our bodies manage those carbs in terms of insulin and fasting blood sugar levels.

There can definitely be some non-weight-loss health benefits to eating fewer carbs!

In conclusion, eating a low carb diet can be healthy, as long as it contains enough of all the essential nutrients. Some people may lose weight eating fewer carbs, and others won’t.

Low carb diets can help to improve how the body manages blood lipids and blood sugar, so it can be a healthy choice for some people.

As with most things in nutrition, there isn’t a one size fits all rule. Low carb diets can be a good choice for many people, but it’s not the magic bullet that some people claim.

What about you – have you tried (or do you currently) eat low carb? How many carbs do you eat per day? Have you had any great (or not so great) health effects from it? Let me know in the comments below.

Recipe  (low carb): Baked “Breaded” Chicken

Serves 4

Ingredients

  • 2 pounds chicken drumsticks
  • ½ cup almond flour
  • ½ tsp salt
  • ¼ tsp black pepper
  • 1 tsp paprika
  • 1 tsp rosemary or thyme
  • ½ tsp garlic powder

Instructions

  1. Preheat oven to 450F.
  2. Cover a large baking dish with parchment paper.
  3. In large food storage bag, combine all ingredients except chicken.
  4. Place a couple of pieces of chicken in the bag and shake until coated.
  5. Repeat with the rest of the chicken.
  6. Place chicken on a lined dish and bake uncovered for 20 minutes.
  7. Turn over and bake 15 minutes longer.
  8. Ensure internal temperature of chicken reaches 165F.

Serve & enjoy!

Tip: You can roast veggies in another pan at the same time. Just chop, drizzle with oil, and sprinkle with salt and pepper. They might not need to cook as long as the chicken, so check them periodically.

References:

https://examine.com/nutrition/does-low-carb-have-an-official-definition/

https://examine.com/nutrition/is-low-carb-really-the-best-weight-loss-diet/

https://examine.com/nutrition/are-there-health-benefits-of-a-low-carb-diet/

https://www.canada.ca/en/health-canada/services/general-food-safety-tips/safe-internal-cooking-temperatures.html

Copia de Waist vs Weight

Raw vs. Cooked – Which Contains More Vitamins and Minerals?

Let’s finally put an end to the debate of raw vs. cooked.

Of course, in the grand scheme of a well-balanced, nutrient-dense, varied, whole foods diet, the cooked vs. raw debate isn’t that critical for most people.

Where this can become a consideration is for vitamin and mineral deficiencies (or insufficiencies”). These may be due to digestion or absorption issues, or avoidance of certain foods (due to allergies, intolerances, or choice).

And I’ll tell you that the answer isn’t as simple as “raw is always better” or “cooked is always better.”  As with most nutrition science, it depends on several factors. Some vitamins are destroyed in cooking, while others become easier to absorb (a.k.a. more “bioavailable”)

Here is the skinny on vitamins and minerals in raw foods versus cooked foods.

Foods to eat RAW

As a general rule, water soluble nutrients, like vitamin C and the B vitamins, found mostly in fruits and vegetables, are best eaten raw.

The reason why is two-fold.

First, when these nutrients are heated, they tend to degrade;  this is from any heat, be it steaming, boiling, roasting, or frying. Vitamin C and the B vitamins are a bit more “delicate” and susceptible to heat than many other nutrients.

Of course, the obvious way to combat these nutrient losses is to eat foods high vitamin C and B vitamins in their raw form (like in an awesome salad) or to cook them for as short a time as possible (like quickly steaming or blanching).

Fun fact: Raw spinach can contain three times the amount of vitamin C as cooked spinach.

The second reason why foods high in vitamin C and the B vitamins are best eaten raw is that they’re “water soluble.”  So, guess where the vitamins go when they’re cooked in water?  Yes, they’re dissolved right into the water;  this is particularly true for fruits and veggies that are boiled and poached but even for foods that steamed as well.

Of course, if you’re a savvy health nut, you’ll probably keep that liquid to use in your next soup or sauce to preserve those nutrients that are left after cooking. Just don’t overheat it or you may lose what you were aiming to keep.

But, how much loss are we talking about?  Well, of course, it ranges but can go from as low as 15%, up to over 50%.

In short, the water soluble vitamins like vitamin C and the B vitamins degrade with heat and some of what’s left over after they’re heated dissolves into the cooking water. So be sure to cook your fruits and veggies as little as possible, and keep that cooking water to use in your next recipe.

Foods to eat COOKED

Cooking certain orange and red “beta-carotene rich” veggies (e.g. tomatoes, carrots, & sweet potatoes) can help make this pre-vitamin A compound more absorbable.

Fun fact: One study found that absorption of beta-carotene was 6.5 times greater in stir-fried carrots than in raw carrots!

Of course, eating your fat-soluble vitamins with a bit of fat will help you to absorb more of them, so that’s one factor to consider.

One vegetable that’s best eaten both raw and cooked: Spinach!

And I’m not just saying this to get everyone to eat it any way possible (although, I would love for this to happen…unless you’re allergic, of course).

Spinach contains so many beneficial compounds that it’s great eaten both raw and cooked.

Eating raw spinach preserves the water-soluble vitamins C & the B vitamins.

Eating spinach cooked allows the pre-vitamin A, as well as some of the minerals like iron to be better absorbed. Not to mention how much spinach reduces in size when it’s cooked, so it’s easier to eat way more cooked spinach than raw spinach.

Soaking nuts and seeds

Regarding raw nuts and seeds, it may be beneficial to soak them. Soaking nuts and seeds (for several hours at room temperature) allows some of the minerals to become “unlocked” from their chemical structure, so they’re more absorbable.

The old nutrition philosophy of making sure you get a lot of nutrient-dense whole foods into your diet holds true. Feel free to mix up how you eat them, whether you prefer raw or cooked just make sure you eat them.

Recipe  (cooked Spinach): Sauteed Spinach

Serves 4

Ingredients

  • 2 teaspoons olive oil
  • 2 cloves garlic
  • 1 bag baby spinach leaves
  • 1 dash salt
  • 1 dash black pepper
  • Fresh lemon

Instructions

  1. In a large cast iron pan heat olive oil.
  2. Add garlic and saute for 1 minute.
  3. Add spinach, salt, pepper and toss with garlic and oil.
  4. Cover pan and cook on low for about 2 minutes.
  5. Saute cook spinach for another minute, stirring frequently, until all the spinach is wilted.
  6. Squeeze fresh lemon juice on top.

Serve & enjoy!

Tip: Enjoying the cooked spinach with the vitamin C in the “raw” lemon juice helps your body absorb more of the iron.

References

https://authoritynutrition.com/cooking-nutrient-content/

http://www.precisionnutrition.com/10-ways-to-get-the-most-nutrients