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Eating

Is a high fat, ketogenic diet good for your cardiovascular system?

Posted by on 8:39 am Cholesterol, Diet, Eating, Lose fat, The Learn to Eat Plan, Weight loss | 0 comments

 

Is a high fat, ketogenic diet good for your cardiovascular system?

 

Let’s see what science says about the effect of the ketogenic diet on the cardiovascular system.
The goal of this study was to measure changes in glucose, lipid, and inflammation (Rosenbaum
M, et al., 2019).
17 men were put on a baseline control diet for 4 weeks and then switched to a ketogenic diet for
4 weeks.
This is what the researchers found.
Total and low-density lipoprotein cholesterol and C-reactive protein were significantly
increased on the ketogenic diet.
These are all cardiovascular disease risk markers. Especially LDL cholesterol and C-reactive
protein which is an inflammatory marker.

 

 

Flow-mediated dilation is another indicator of vascular health.
In this study, obese participants were either consuming high fat or low-fat meals for 6 weeks
(Varady KA, et al., 2011).
After 6 weeks, flow-mediated dilation improved in the low-fat group with a 32% increase and was
impaired in the high-fat group with a 19% reduction.
When 42 participants consumed a ketogenic diet for 6 week LDL cholesterol increased
significantly with 10.7% (Urbain P, et al., 2017).

 

 

Research, in general, has shown an increase in LDL cholesterol with a high-fat diet.
Negative effects on the cardiovascular system seem to be a concern with high-fat diets even if
some people may respond more favorably to a ketogenic diet than others.

References:

Rosenbaum M, Hall KD, Guo J, Ravussin E, Mayer LS, Reitman ML, Smith SR, Walsh BT, Leibel
RL, Glucose and Lipid Homeostasis and Inflammation in Humans Following an Isocaloric
Ketogenic Diet. Obesity (Silver Spring). 2019 Jun;27(6):971-981.

Urbain P, Strom L, Morawski L, Wehrle A, Deibert P, Bertz H, Impact of a 6-week
non-energy-restricted ketogenic diet on physical fitness, body composition and biochemical
parameters in healthy adults. Nutr Metab (Lond). 2017 Feb 20;14:17.

Varady KA, Bhutani S, Klempel MC, Phillips SA. Improvements in vascular health by a low-fat
diet, but not a high-fat diet, are mediated by changes in adipocyte biology. Nutr J. 2011 Jan
20;10:8.

 

Learn to eat program

  • How and why different foods affect you
  • How to put together meals that will produce the results you’re looking for
  • How to lose weight effortlessly by eating the foods your body needs
  • How to gain muscle and improve sports performance.
  • How to reduce inflammation and pain
  • How to stabilize your moods so you feel happier
  • How to lower cholesterol and triglycerides

 

How does a high fat, ketogenic diet affect your muscles?

Posted by on 9:00 am Blood triglycerides, Body fat, Body mass index, Diet, Eating, Exercise, Fat, General Health, Get in shape, Health Risk, Muscles, Sports performance, The Learn to Eat Plan, Weight loss | 0 comments

ketogenic diet

 

How does a high fat, ketogenic diet affect your muscles?

 

There is a lot of promotion and talk about the benefits of restricting carbohydrate intake and eating a high fat, ketogenic diet.

When you read things like that, always ask, where is the evidence? Is there any science supporting the claims?

There is agreement on that more lean muscle mass and a lower body fat percentage are beneficial. This is true for everybody, but especially athletes.

Before you go on a high-fat diet, you want to know how a regime like that will affect your lean muscle mass.

The following research included 42 healthy individuals that followed a ketogenic diet for 6 weeks consisting of the same calorie intake as their regular diet (Urbain P, et.al., 2017).

They were tested for several things at the start of the study and after 6 weeks.

 

 

VO2peak and peak power decreased after the ketogenic diet.

The participants lost equal amounts of fat and fat-free mass, which means they lost some muscle mass.

Total cholesterol and LDL-cholesterol increased significantly, LDL by 10.7% which is quite a lot, especially since LDL is a major risk factor for cardiovascular disease.

Glucose, insulin, and IGF-1 (a growth factor) dropped significantly by 3.0, 22.2 and 20.2%.

Another non-significant change was also seen.

 

ketogenic diet 2

 

Similar results were found when seventeen overweight or obese men were admitted to metabolic wards where they consumed a high-carbohydrate baseline diet for 4 weeks followed by 4 weeks of a ketogenic diet (Hall KD, et.al., 2016).

 

Body fat loss slowed during the ketogenic diet and coincided with increased protein utilization and loss of fat-free mass. These participants also lost muscle mass, and this study was done under very strict control.

 

Apparently a high-fat diet is not producing the amazing results some would want you to believe.

 

References

 

Hall KD, Chen KY, Guo J, Lam YY, Leibel RL, Mayer LE, Reitman ML, Rosenbaum M, Smith SR, Walsh BT, Ravussin E. Energy expenditure and body composition changes after an isocaloric ketogenic diet in overweight and obese men. Am J Clin Nutr. 2016 Aug;104(2):324-33.

 

Urbain P, Strom L, Morawski L, Wehrle A, Deibert P, Bertz H.Impact of a 6-week non-energy-restricted ketogenic diet on physical fitness, body composition and biochemical parameters in healthy adults.Nutr Metab (Lond). 2017 Feb 20;14:17

Learn to eat program

  • How and why different foods affect you
  • How to put together meals that will produce the results you’re looking for
  • How to lose weight effortlessly by eating the foods your body needs
  • How to gain muscle and improve sports performance.
  • How to reduce inflammation and pain
  • How to stabilize your moods so you feel happier
  • How to lower cholesterol and triglycerides

Can your blood glucose regulation affect your memory?

Posted by on 12:45 pm Bloodsugar, Cognition, Dementia, Diabetes, Diet, Eating, General Health, Glucose, Health Risk, Insulin resistance, Memory, Wellness | 0 comments

This study investigated how the ability to control the levels of blood glucose was related to mood and cognition (Young H, Benton D, 2014).

155 adults, aged 45-85 years,  without a diagnosis of diabetes, were given an oral glucose tolerance test and cognitive tests. 

The researchers found that those with poorer glucose tolerance forgot more words and had slower decision times, but only if they were 61 years or older. 

The next study on the same topic included 93 healthy male and female non-diabetic participants who ranged in age from 55 to 88 years (Messier C, 2010). 

The researchers measured cognitive function as well as other things. The participants also had a glucose tolerance test during which glucose and insulin were measured.This was done after drinking a saccharin solution and on another occasion after drinking a glucose solution (50 g).

The results showed that progressively worse glucose regulation predicted poorer performance on measures of working memory and executive function.

The researchers stated that the results suggest that cognitive functions may be impaired before gluco-regulatory impairment reaches levels consistent with a type 2 diabetes diagnosis.

The change from being insulin sensitive to being insulin resistant is a gradual process. This shows that it is really important to keep your blood glucose at a low and normal level not only after you have fasted, but also after eating. Ideally it should be below 90 two hours after a meal.

The sooner you  implement strategies to stay insulin sensitive the better it is.

You can stay insulin sensitive by making changes to the way you eat and by incorporating exercise into your routine.

References

Messier C, Tsiakas M, Gagnon M, Desrochers A. Effect of age and glucoregulation on cognitive performance. J Clin Exp Neuropsychol. 2010 Oct;32(8):809-21.

Young H, Benton D.The nature of the control of blood glucose in those with poorer glucose tolerance influences mood and cognition. Metab Brain Dis. 2014 Sep;29(3):721-8.

 

 

 

Learn to Eat Program

Based on the most effective scientific strategies, this program was created to help
you reduce inflammation and feel great.

Read more…

The importance of this vitamin and why some people may not be getting enough of it

Posted by on 8:42 am Eating, General Health, Health, Stay healthy, Supplements, Supplements for Conditions, Vitamin B | 0 comments

Thiamine vitamin B1 is an essential cofactor for 4 enzymes involved in the production of energy (ATP) and the synthesis of essential cellular molecules. 

The total body stores of thiamine are relatively small, and thiamine deficiency can develop  secondary to inadequate nutrition, high alcohol consumption, increased urinary excretion and acute metabolic stress (Attaluri P, et.al., 2018).

We need to keep in mind that we don’t have to have severe deficiencies of vitamins to develop symptoms that may not be recognized as caused by marginal deficiencies.

Fast food consumption will not provide adequate levels of nutrients even if they usually provide excess calories. Alcohol makes us use more of the B vitamins. 

It is also quite common to experience an increase in urinary excretion as we get older. Many men and women have to get up several times during the night, even if they are not very old. This makes us excrete more of both minerals and vitamins, especially the B vitamins which are water soluble.

Thiamine deficiency has been suggested to be associated with many cardiovascular diseases  and risk factors including type 1 and type 2 diabetes, obesity, chronic vascular inflammation, dyslipidemia, heart failure, myocardial infarction, nerve conduction defects, and depression (Eshak ES, Arafa AE, 2018).  A lot of people die of cardiovascular disease, and thiamine deficiency could play a role in the development of that.

Remember thiamine is only one of the B vitamins, and they are all very important.

Reduced bioavailability is a major limiting factor of regular thiamine.  To overcome this issue benfotiamine a form of thiamine which is much more bioavailable was developed (Ray V, et.al., 2018).

A high quality vitamin B-complex should contain this form of vitamin B1 in addition to better bioavailable forms of some of the other B vitamins.

References

Attaluri P, Castillo A, Edriss H, Nugent K.Thiamine Deficiency: An Important Consideration in Critically Ill Patients. Am J Med Sci. 2018 Oct;356(4):382-390. 

Eshak ES, Arafa AE. Thiamine deficiency and cardiovascular disorders. Nutr Metab Cardiovasc Dis. 2018 Oct;28(10):965-972. Nutr Metab Cardiovasc Dis. 2018 Oct;28(10):965-972.

Raj V, Ojha S, Howarth FC, Belur PD, Subramanya SB. Therapeutic potential of benfotiamine and its molecular targets. Eur Rev Med Pharmacol Sci. 2018 May;22(10):3261-3273.

This is not a regular B vitamin formula.

The B1 (thiamine), B2 (riboflavin), B6 (pyridoxine), and B12 (cobalamin) comes in their physiologically active form, making them easier to absorb.

To get your bottle, click here.

Why is it important to know the immediate effects of your meals?

Posted by on 12:00 pm Bloodsugar, Calories, Eating, Fat, General Health, HDL, Omega-3, fish oil, Tissue Recovery Blog, Wellness | 0 comments

When you have your yearly medical checkup, your doctor usually runs a blood test to see how your biochemistry is when you are in a fasted state.  You should have the blood drawn in the morning before you eat anything.

While this gives both your doctor and you an idea about your health status and certain health risks, is it the most accurate way to collect information to see how well you are doing?

It is certainly a good to have those data, but think about it: we are not in a fasting state during the day. Most people eat several times during the day and may even snack between their meals.

There are several important factors to take into account when it comes to the more immediate after-effect of the meals we eat. We will look specifically at cholesterol here, which is interesting because a new study related to cholesterol and egg consumption was just published.

Let’s, however, look at another paper first.

The authors found the following.

Diet is not just about fasting cholesterol; it is mainly about the after-meal effects of cholesterol, saturated fats, oxidative stress and inflammation (Spence JD, et.al., 2010).  Focusing on fasting cholesterol obscures three key issues:

  • Dietary cholesterol increases the susceptibility of low-density lipoprotein (LDL) to oxidation
  • increases the after-meal effect of excess fat
  • increases the adverse effects of dietary saturated fat

Oxidized LDL is a major risk factor for cardiovascular disease.

These researchers also said dietary cholesterol, including egg yolks, is harmful to the arteries.

Now, let’s look at the more recent study.

29 615 participants were followed for an average of 17.5 years (Zhong VW, et al., 2019).  This is what the researchers concluded.

Among US adults, higher consumption of dietary cholesterol or eggs was significantly associated with higher risk of cardiovascular disease and all-cause mortality in a dose-response manner.

References

Spence JD, Jenkins DJ, Davignon J.Dietary cholesterol and egg yolks: not for patients at risk of vascular disease.Can J Cardiol. 2010 Nov;26(9):e336-9.

Zhong VW, Van Horn L, Cornelis MC, Wilkins JT, Ning H, Carnethon MR, Greenland P, Mentz RJ, Tucker KL, Zhao L, Norwood AF, Lloyd-Jones DM, Allen NB.Associations of Dietary Cholesterol or Egg Consumption With Incident Cardiovascular Disease and Mortality. JAMA. 2019 Mar 19;321(11):1081-1095.

 

 

Learn to Eat Program

Based on the most effective scientific strategies, this program was created to help
you reduce inflammation and feel great.

Read more…

Do normal LDL cholesterol levels protect us from cardiovascular disease?

Posted by on 10:48 am Blood Pressure, Body fat, Cardiovascular Disease, Cholesterol, Diseases, Eating, Fat, General Health, HDL, HDL Level, Health, Health Risk, Heart disease | 0 comments

The correct term for LDL is Low-Density Lipoprotein and it is also called the “bad cholesterol” because LDL tends to create plaque in the arteries and atherosclerosis.

There are however different opinions about the risk of cholesterol and LDL.

I think you will find the following research data interesting.

What most laboratories are reporting as normal for LDL cholesterol are values below 99 mg/dl and it used to be even higher than that.

Let’s take a closer look at that. What do so-called “normal” people die from?

They die from cardiovascular disease in western societies. Knowing that, do you really want to be normal?

The normal low-density lipoprotein (LDL) cholesterol range is 50 to 70 mg/dl for native hunter-gatherers, healthy human babies, free-living primates, and other wild mammals (all of whom do not develop atherosclerosis (O’Keefe JH Jr, et.al., 2004).

The same researchers stated that no major safety concerns have surfaced in studies that lowered LDL to this range of 50 to 70 mg/dl.

There is a consistent relative risk reduction in major vascular events in patient populations starting as low as an average of 63 mg/dL and achieving levels as low as a median of 21 mg/dL, with no observed offsetting adverse effects (Sabatine MS, et.al., 2018).

The only factor required to cause atherosclerosis is cholesterol (Benjamin MM, Roberts W, 2013).

Other factors like genetics (1 in 500), cigarette smoking, diabetes, overweight, inactivity and stress will not by themselves form plaque. They will, however, contribute to and increase the risk of cardiovascular disease if cholesterol and LDL are elevated. This is according to what Benjamin MM and Roberts W reported at the at the 39th Annual Williamsburg Conference on Heart Disease.

What can you do to keep cholesterol and LDL low?

A low glycemic index, high nutrient, plant based diet will do that for most people.  Statin drugs will also do it, but it is preferable to use food.

References

Benjamin MM, Roberts WC.Facts and principles learned at the 39th Annual Williamsburg Conference on Heart Disease.Proc (Bayl Univ Med Cent). 2013 Apr;26(2):124-36

O’Keefe JH Jr, Cordain L, Harris WH, Moe RM, Vogel R.Optimal low-density lipoprotein is 50 to 70 mg/dl: lower is better and physiologically normal.J Am Coll Cardiol. 2004 Jun 2;43(11):2142-6.

Sabatine MS, Wiviott SD, Im K, Murphy SA, Giugliano RP.Efficacy and Safety of Further Lowering of Low-Density Lipoprotein Cholesterol in Patients Starting With Very Low Levels: A Meta-analysis. JAMA Cardiol. 2018 Sep 1;3(9):823-828.

 

 

Learn to Eat Program

Based on the most effective scientific strategies, this program was created to help
you reduce inflammation and feel great.

Read more…