Can these everyday smoothie ingredients help relieve symptoms of Alzheimer’s disease?

What is Alzheimer’s disease?

Alzheimer’s disease is a functional disturbance of the brain that gradually leads to memory loss and difficulties with thought processing.1 It is the most common cause of dementia but not the only cause. The early onset of the symptoms of Alzheimer’s disease tends to occur in the mid-60s.1 – 3

I had little knowledge of Alzheimer’s disease prior to writing this article. However, whilst researching into this disease, I believed that it is those who are diagnosed with Alzheimer’s and their carers that could really explain what Alzheimer’s disease is. To gain some understanding, I joined the Dementia Friends Initiative and watched awareness movies such as Still Alice which is also available as a book.

Continual research is being channelled towards the development of medicinal treatment for enhancing long-term memory.4 These research programmes have produced some small molecules specifically for memory-enhancement. However, some of them have dose-limiting side effects which have severely restricted their therapeutic use.5

A healthy diet might help

Reports have known that a healthy balanced diet can reduce the risk of developing dementia, along with maintaining a healthy lifestyle.2,3 Additionally, some studies suggests that individuals with dementia often have low levels of vitamins C and E.6 Vitamins C and E have been suggested to have protective activities on the brain from the effects of ageing. An observational research study linked high dietary intake of vitamins C and E to a 20-25% lower risk of Alzheimer’s disease.6 Although, it is unclear whether the benefit is from a healthy diet or the vitamins alone. In addition, the vitamin supplements did not appear to offer the same protection.6

A healthy diet might be beneficial, as the combined effect of many nutrients outweighs the effect of a single nutrient.7 This idea is exemplified by Souvenaid, a medical nutrition formulation. Souvenaid is a drink that contains the combination of vitamins and nutrients for the dietary management of early Alzheimer’s disease. The drink contains high doses of Vitamin C, E, B and B13, uridine, choline and omega 3 fatty acids.7

Omega 3 fatty acids are found in fish. This is rather interesting because as a child, I rarely ate fish and I still don’t eat it that often, however, I have just started adding tuna to my menu. During my childhood, I only ate fish as I believed that it will boost my intellect, so the night before a school test I would be hoping for fish at dinner. Clearly, that is not how it works but it encouraged me to eat fish.

Can a smoothie help relieve some of the symptoms?


There has been some success in the use of classical neurotrophic factors to treat a variety of chronic and acute disorders of the central nervous system.5 Neurotrophic factors promote the differentiation, survival and functional maintenance of nerve cells. However, difficulty in crossing the blood-brain barrier limits the use of classical neurotrophic factors.5 Therefore, there is a need to identify small molecules that mimic neurotrophic factors.

Fisetin ChemDraw

Figure 1: Fisetin

Studies suggest that fisetin (Figure 1) can facilitate long-term memory, therefore, it may be useful for treating patients with memory disorders.5 Fisetin is a naturally occurring flavonoid compound present in many fruits and vegetables (Figure 2) including strawberries, apples, cucumbers and onions.8 It is also available over-the-counter as a supplement.

Smoothie Ingredients

Figure 2: Fruits that contain fisetin


Pre-clinical studies data show that fisetin has some of the properties of classical neurotrophic factors and could potentially be beneficial when it to comes to Alzheimer’s disease.5 However, it is important to note here that no studies have been carried out in humans.8 Some of the theoretical benefits of fisetin suggested from pre-clinical studies are listed below.5, 9

  1. It promotes differentiation and survival of the nerve cell (it protects nerve cells from oxidative stress-induced death)
  2. Enhances long-term memory by activating signalling pathways that contribute to the development of long-term memory
  3. Can act on many of the targets pathways implicated in Alzheimer’s disease
  4. Works through a different mechanism to other memory-enhancing compounds
  5. Is effective when given orally

Future work

Further research of fisetin could have a long-term beneficial effect on memory with relatively little cost or side effects as it is present in a number of commonly eaten foods.5 Fisetin is also being researched as a potential treatment to protect from breast cancer.10

Please refer to the disclaimer page



5 thoughts on “Can these everyday smoothie ingredients help relieve symptoms of Alzheimer’s disease?

  1. Thank you for this educational paragraph. I’m really interested in these healthy diet and would love to try it. Thanks once again.


    • Thank you for your comment and I am glad you enjoyed the article. Please note that this is not advice but awareness information. Thank you again.


  2. Thank you for the awareness, you have enlightened us.


  3. Wow this is really interesting. Thank you.

    Liked by 1 person

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s