Doug Cook RD

Doug Cook RD http://www.dougcookrd.com/ I strive to be a free thinker versus running with the pack.

Doug Cook RD, Integrative & Functional Nutritionist and Registered Dietitian; helping by leveraging traditional & functional medicine to help people who aren't satisfied with the healthcare they've received. Reflections of a dietitian who is trying to make sense of the nutrition and health information overload that we all face and who is willing to take a stance even if it doesn't mean 'toeing the party line'. I am an integrative & functional nutritionist/dietitian who helps people who've tried all the regular routes to health and dealing with their health issues but have not gotten the results they want; I blend the best of medicine, and integrative health to help people feel better and achieve better health

Vitamin E โ‰  one vitamin ๐Ÿ‘€  Vitamin E is actually a family of 8 different compounds, not a single nutrient.  These includ...
12/20/2025

Vitamin E โ‰  one vitamin ๐Ÿ‘€

Vitamin E is actually a family of 8 different compounds, not a single nutrient.

These include 4 tocopherols and 4 tocotrienols, each with alpha, beta, gamma, and delta forms.

Collectively, scientists now group them under the name tocochromanols ๐Ÿงฌ

What they all have in common? ๐Ÿ‘‰ Antioxidant activity, meaning they help protect cell membranes from oxidative damage.

Most supplements focus only on alpha-tocopherol (the form used to meet basic requirements), but gamma-tocopherol is abundant in foods and may offer complementary antioxidant and anti-inflammatory benefits.

๐“๐จ๐ฉ ๐Ÿ๐จ๐จ๐ ๐ฌ๐จ๐ฎ๐ซ๐œ๐ž๐ฌ ๐Ÿ‘‡

๐Ÿฅ‘ ๐€๐ฅ๐ฉ๐ก๐š-๐ญ๐จ๐œ๐จ๐ฉ๐ก๐ž๐ซ๐จ๐ฅโ€“๐ซ๐ข๐œ๐ก ๐Ÿ๐จ๐จ๐๐ฌ
โ€ข Almonds
โ€ข Sunflower seeds & sunflower oil
โ€ข Avocado
โ€ข Wheat germ
โ€ข Olive oil

๐ŸŒฐ ๐†๐š๐ฆ๐ฆ๐š-๐ญ๐จ๐œ๐จ๐ฉ๐ก๐ž๐ซ๐จ๐ฅโ€“๐ซ๐ข๐œ๐ก ๐Ÿ๐จ๐จ๐๐ฌ
โ€ข Walnuts
โ€ข Pecans
โ€ข Pistachios
โ€ข Sesame seeds & tahini
โ€ข Soybean, corn, and canola oils

๐„๐š๐ฌ๐ฒ ๐ฐ๐š๐ฒ๐ฌ ๐ญ๐จ ๐ ๐ž๐ญ ๐ฆ๐จ๐ซ๐ž ๐ฏ๐ข๐ญ๐š๐ฆ๐ข๐ง ๐„ ๐๐š๐ข๐ฅ๐ฒ
โ€ข Add nuts or seeds to oatmeal, yogurt, or salads
โ€ข Use olive or sunflower oil for low-heat cooking
โ€ข Snack on trail mix instead of ultra-processed snacks
โ€ข Blend avocado or nut butter into smoothies

Food > single-nutrient thinking โœจ

I've said the same: biology, physiology, anatomy etc doesn't give a rat's ass about one's dietary philosophy, values or ...
11/22/2025

I've said the same: biology, physiology, anatomy etc doesn't give a rat's ass about one's dietary philosophy, values or beliefs....there are many paths to the same, biologically determined destiny and nutrient destiny and bioavailability rule

An interesting video for educational purposes !
11/11/2025

An interesting video for educational purposes !

Introducing Dr. Renu Mahtani, physician, author, and global educator in autoimmune health, nutritional medicine, and vitamin D therapy - and the first specia...

Best 6 nutrients for eye health!
11/04/2025

Best 6 nutrients for eye health!

These are the best vitamins and supplements for eye health, which are great for supporting your vision and helping you take better care of your eyes.

11/02/2025

It's World Vitamin D Day......if you haven't started (early fall is ideal), start to supplement today. It takes about 10+ weeks for vitamin D levels to level off after you start to supplement but don't wait.

If you're in the southern hemisphere, time to consider getting some safe sun exposure if you haven't already. โฃ
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Folks in the northern hemisphere, it's time to get your supplements lined up if you haven't yet. โฃ
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In the interest of saving space, I'll list a few factoids on this amazing molecule. โฃ
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1. Vitamin D can only be made meaningfully when the UVB index is 3 or >. Where you live impacts this. Rule of thumb: your shadow has to be shorter than you are tall. โฃ
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2. When supplementing, it takes 10-12 weeks for blood levels to achieve steady state (level off). It doesn't happen quickly so ideally, supplements should be started in early autumn. โฃ
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3. Heaps of cell types (not just bones) use/need vitamin D. โฃ
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4. Vitamin D positively influences over 2500 genes impacting dozens of our most serious health challenges. โฃ
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5. Vitamin D is needed for a robust immune system. โฃ
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6. In your lungs, vitamin D protects against inflammation & reduces the risk for respiratory infection-related complications. โฃ
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7. Vitamin D is 'fat soluble' meaning it has a 'large volume of distribution'. It is found in blood & fat tissues. Some is stored in fat, but not in large amounts. โฃ
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8. The larger you are (muscle, height, fat), the more vitamin D you need to achieve an ideal blood level. Lose rule of thumb: 30 IU/pound or 65 IU/kg of body weight. โฃ
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9. Magnesium is needed to convert vitamin D into its active form. Vitamin D 'turns on' vitamin K2-dependent proteins; ensure you're getting enough magnesium & K2. โฃ
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10. Vitamin D causes your immune system to produce over 200 'anti-microbial peptides'; kinda like naturally occurring antibiotics. โฃ
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11. Vitamin D works with omega-3s โฃ
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Check out www.grassrootshealth.net & www.vitamindwiki.com โฃ
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๐—ก๐—ผ๐˜๐—ฒ, vitamin D needs supporting nutrients: vitamins A & K2, magnesium, boron, & zinc. โฃ
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It is curious...considering people  voted for Carney for a decisive deal....I think 76% of our trade is with the US...th...
10/31/2025

It is curious...considering people voted for Carney for a decisive deal....I think 76% of our trade is with the US...thought it would have been a priority. Like him or not? We have to work with DJT

10/28/2025

Your immune system depends on what you eat every day.

Vitamins [A/retinol, Bs, C, D], minerals [selenium, zinc], protein, and healthy fats help your body make antibodies, fight off infections, and recover faster.

A balanced diet with plenty of colorful fruits, vegetables, and whole foods gives your immune cells the fuel they need to stay strong year-round. ๐Ÿฅฆ๐ŸŠ๐Ÿ’ช

Not how I expected it to turn out. It was much fluffier looking with more height right out of the oven.3 simple ingredie...
10/26/2025

Not how I expected it to turn out. It was much fluffier looking with more height right out of the oven.

3 simple ingredients: eggs whites, cottage cheese and cheddar cheese with pepper, onion and garlic powder.

A great snack, or part of a main meal [I'd pair it with sliced tomatoes and avocado ๐Ÿฅ‘

Super easy...the internet has endless recipes.

Next time I'll add some cropped fresh broccoli ๐Ÿฅฆ and or spinach

๐ŸŒฟ ๐“๐ก๐ž ๐Œ๐ข๐ ๐ก๐ญ๐ฒ ๐–๐ก๐ข๐ญ๐ž ๐๐ฎ๐ญ๐ญ๐จ๐ง ๐Œ๐ฎ๐ฌ๐ก๐ซ๐จ๐จ๐ฆ ๐Ÿ„  Small but mighty โ€” white button mushrooms are one of the most underrated superfood...
10/09/2025

๐ŸŒฟ ๐“๐ก๐ž ๐Œ๐ข๐ ๐ก๐ญ๐ฒ ๐–๐ก๐ข๐ญ๐ž ๐๐ฎ๐ญ๐ญ๐จ๐ง ๐Œ๐ฎ๐ฌ๐ก๐ซ๐จ๐จ๐ฆ ๐Ÿ„

Small but mighty โ€” white button mushrooms are one of the most underrated superfoods!

Low in calories yet rich in nutrients, these humble fungi deserve a regular spot on your plate.

โœจ ๐“๐จ๐ฉ ๐Ÿ‘ ๐‡๐ž๐š๐ฅ๐ญ๐ก ๐๐ž๐ง๐ž๐Ÿ๐ข๐ญ๐ฌ:
โ€ข Supports Immune Health: Packed with beta-glucans that help modulate the immune response.

โ€ข Promotes Heart Health: Naturally low in fat and sodium while providing potassium to help balance blood pressure.

โ€ข Boosts Antioxidant Defenses: A top dietary source of ergothionine, a rare antioxidant that protects cells and mitochondria from oxidative stress and may help reduce inflammation and slow cellular aging.

๐Ÿฝ๏ธ ๐Ÿ“ ๐„๐š๐ฌ๐ฒ ๐–๐š๐ฒ๐ฌ ๐ญ๐จ ๐„๐ง๐ฃ๐จ๐ฒ ๐“๐ก๐ž๐ฆ:

1. Sautรฉ with garlic and herbs as a simple side.
2. Add sliced mushrooms to omelets or scrambles.
3. Stir into soups, stews, or risottos for umami depth.
4. Roast with olive oil and balsamic for a savoury snack.
5. Blend into ground meat for burgers or tacos โ€” more flavour, less fat!

๐Ÿ’ก ๐…๐ฎ๐ง ๐Ÿ๐š๐œ๐ญ: Mushrooms are neither plant nor animal โ€” theyโ€™re fungi, offering a distinct nutrient profile including selenium, B vitamins, and a unique antioxidant ๐ž๐ซ๐ ๐จ๐ญ๐ก๐ข๐จ๐ง๐ข๐ง๐ž (ET) found in very few foods.

ET is made only by fungi and bacteriaโ€”humans must obtain it from foods like mushrooms. It protects cells and mitochondria from oxidative stress and inflammation.

Research shows that higher blood levels of ergothioneine are linked to lower risks of heart disease, cardiovascular mortality, and all-cause mortality.

Cohort studies also suggest regular mushroom eaters have modestly lower death risk, while higher ergothioneine levels are associated with reduced dementia incidence. Lab studies show it may slow cellular aging and protect neurons.

Are you a lover mushrooms?

  โœจ๐Ÿ’ ๐’๐ฎ๐ฉ๐ฉ๐ฅ๐ž๐ฆ๐ž๐ง๐ญ๐ฌ ๐ญ๐จ ๐‚๐จ๐ง๐ข๐ฌ๐๐ž๐ซ ๐Ÿ๐จ๐ซ ๐ƒ๐š๐ข๐ฅ๐ฒ ๐–๐ž๐ฅ๐ฅ๐ง๐ž๐ฌ๐ฌโœจ  ๐Ÿ. ๐-๐‚๐จ๐ฆ๐ฉ๐ฅ๐ž๐ฑ ๐Ÿ”น Supports energy metabolism by helping convert food into...
10/05/2025


โœจ๐Ÿ’ ๐’๐ฎ๐ฉ๐ฉ๐ฅ๐ž๐ฆ๐ž๐ง๐ญ๐ฌ ๐ญ๐จ ๐‚๐จ๐ง๐ข๐ฌ๐๐ž๐ซ ๐Ÿ๐จ๐ซ ๐ƒ๐š๐ข๐ฅ๐ฒ ๐–๐ž๐ฅ๐ฅ๐ง๐ž๐ฌ๐ฌโœจ

๐Ÿ. ๐-๐‚๐จ๐ฆ๐ฉ๐ฅ๐ž๐ฑ
๐Ÿ”น Supports energy metabolism by helping convert food into fuel; glycolysis, Krebs cycle and the electron transport chain anyone?
๐Ÿ”น Contributes to healthy brain function and stress resilience.

๐Ÿ. ๐†๐ฅ๐ฎ๐ญ๐š๐ญ๐ก๐ข๐จ๐ง๐ž
๐Ÿ”น The bodyโ€™s โ€œmaster antioxidant,โ€ helping neutralize free radicals. It's also the main compound used in your body's detoxification pathways, especially in the liver
๐Ÿ”น Plays a key role in liver detoxification and immune defense.

๐Ÿ‘. ๐•๐ข๐ญ๐š๐ฆ๐ข๐ง ๐ƒ๐Ÿ‘ + ๐Š๐Ÿ
๐Ÿ”น D3 supports strong bones and muscle function by enhancing calcium absorption.
๐Ÿ”น K2 directs calcium into bones and teeth while helping keep arteries clear.
๐Ÿ”นD3 is also one of the foundational nutrients for a robust immune system

๐Ÿ’. ๐•๐ข๐ญ๐š๐ฆ๐ข๐ง ๐‚
๐Ÿ”น Boosts collagen synthesis for skin, joints, and vascular health.
๐Ÿ”น Strengthens immune defenses and reduces oxidative stress.

๐Ÿ’ง๐–๐ก๐ฒ ๐‹๐ข๐ฉ๐จ๐ฌ๐จ๐ฆ๐š๐ฅ?
Liposomal delivery protects nutrients through digestion, boosting absorption and bioavailabilityโ€”meaning you get more of what your body truly needs.

Check out these options from

๐Ÿ‘‰ Prioritize your health with smart supplementationโ€”because small, consistent habits add up to big results.

  ๐ŸŒŠโœจ From the cold, deep seas comes one of natureโ€™s oldest superfoods โ€“ cod liver oil.   Another find  2025  Once a trad...
10/04/2025


๐ŸŒŠโœจ From the cold, deep seas comes one of natureโ€™s oldest superfoods โ€“ cod liver oil.

Another find 2025

Once a traditional remedy, today itโ€™s celebrated for its science-backed nutrition that fuels vitality from the inside out.

Just 1 teaspoon of this golden oil delivers:

๐Ÿฅ• ๐•๐ข๐ญ๐š๐ฆ๐ข๐ง ๐€: 255 RAE (850 IU) โ†’ supports vision, immunity & skin health

โ˜€๏ธ ๐•๐ข๐ญ๐š๐ฆ๐ข๐ง ๐ƒ๐Ÿ‘: 10 mcg (400 IU) โ†’ vital for bones, muscles & immune resilience

๐Ÿง  ๐Ž๐ฆ๐ž๐ ๐š-๐Ÿ‘๐ฌ:

EPA: 370 mg โ†’ supports heart & joint health

DHA: 500 mg โ†’ critical for brain, eyes & cognitive function

DPA: 50 mg โ†’ the โ€œforgotten omega-3โ€ that amplifies the benefits of EPA & DHA

Together, these nutrients form a powerhouse for heart health, immune strength, cognitive sharpness, and overall wellness.

Cod liver oil isnโ€™t just a supplement โ€“ itโ€™s a daily tradition for lasting energy and resilience. ๐ŸŒŠ๐Ÿ’ช

Would you take your teaspoon today? ๐Ÿ‘‡

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Toronto, ON

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