Diet soda linked to risk of depression

millyvanilli321

When I'm in a depressive slump, I'm lethargic and mopey, sometimes with nasty headaches, so I'm more likely to drink more diet soda for the caffeine pick me up. So in my case, it's not that diet drinks cause depression, but depression causes me to turn to more soda.

I'm also more likely go shopping when I'm depressed.

Lol, there's some suggestion that aspartame does increase dopamine transmission to the brain making people more alert.

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

You got a certified peer review study for that assertion?

ninerbuff

If you're speculating about diet soda affecting mood, then it's going to be hormonal since hormones have a direct affect on it. So please post a peer reviewed clinical study on aspartame directly affecting serotonin, dopamine, testosterone and estrogen for starters. If you can't then you're speculating.
Allergies are a different ballpark. Someone who is allergic to something wouldn't keep ingesting it so they can be in a bad health state.:laugh:

This is what the entire post and article is about. Large study etc etc.

And it concluded that aspartame directly affected the hormones stated above? Nope.

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

ninerbuff

It's pure chemicals.. -_- Everyone should just go with natural sweeteners! XO

Hate to tell that all food and drinks are pure chemicals.:laugh:

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

ninerbuff

When I'm in a depressive slump, I'm lethargic and mopey, sometimes with nasty headaches, so I'm more likely to drink more diet soda for the caffeine pick me up. So in my case, it's not that diet drinks cause depression, but depression causes me to turn to more soda.

I'm also more likely go shopping when I'm depressed.

Lol, there's some suggestion that aspartame does increase dopamine transmission to the brain making people more alert.

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

You got a certified peer review study for that assertion?

Yep.

http://macaulay.cuny.edu/eportfolios/liu10/files/2010/09/Direct-and-Indirect-Cellular-Effects-of-Aspartame-On-The-Brain.pdf

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

millyvanilli321

When I'm in a depressive slump, I'm lethargic and mopey, sometimes with nasty headaches, so I'm more likely to drink more diet soda for the caffeine pick me up. So in my case, it's not that diet drinks cause depression, but depression causes me to turn to more soda.

I'm also more likely go shopping when I'm depressed.

Lol, there's some suggestion that aspartame does increase dopamine transmission to the brain making people more alert.

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

You got a certified peer review study for that assertion?

Yep.

http://macaulay.cuny.edu/eportfolios/liu10/files/2010/09/Direct-and-Indirect-Cellular-Effects-of-Aspartame-On-The-Brain.pdf

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition

"The aim of this study was to discuss the direct and indirect cellular effects of aspartame on the brain, and we propose that excessive aspartame ingestion might be involved in the pathogenesis of certain mental disorders (DSM-IV-TR 2000) and also in compromised learning and emotional functioning."

The study you posted supports the conclusion of the study I posted.

"Compromised dopamine production will result because phenylalanine will bind more frequently and freely than tyrosine owing to its higher concentration, and thus lead to lower concentrations of dopamine in the brain. After administration of aspartame to humans, the increases in blood levels of both phenylalanine and tyrosine have been well documented (Fernstorm, 1988; Filer and Stegink, 1988). Therefore, phenylalanine (formed by breakdown of aspartame) will increase in the brain owing to the ingestion of aspartame, and tyrosine will increase as a breakdown byproduct of phenylalanine in the liver (Fernstorm, 1988; Filer and Stegink, 1988). Thus, aspartame and its components could potentially disrupt a wide range of processes in the
body, including amino acid metabolism, protein structure and metabolism, nucleic acid integrity, neuronal function and endocrine balances."

phenylalanine is the main constituent of aspartame.

You should really read the studies you post before posting them.

ninerbuff

"The aim of this study was to discuss the direct and indirect cellular effects of aspartame on the brain, and we propose that excessive aspartame ingestion might be involved in the pathogenesis of certain mental disorders (DSM-IV-TR 2000) and also in compromised learning and emotional functioning."

This was the AIM of the study.

The study you posted supports the conclusion of the study I posted.

"Compromised dopamine production will result because phenylalanine will bind more frequently and freely than tyrosine owing to its higher concentration, and thus lead to lower concentrations of dopamine in the brain. After administration of aspartame to humans, the increases in blood levels of both phenylalanine and tyrosine have been well documented (Fernstorm, 1988; Filer and Stegink, 1988). Therefore, phenylalanine (formed by breakdown of aspartame) will increase in the brain owing to the ingestion of aspartame, and tyrosine will increase as a breakdown byproduct of phenylalanine in the liver (Fernstorm, 1988; Filer and Stegink, 1988). Thus, aspartame and its components could potentially disrupt a wide range of processes in the
body, including amino acid metabolism, protein structure and metabolism, nucleic acid integrity, neuronal function and endocrine balances."

phenylalanine is the main constituent of aspartame.

You should really read the studies you post before posting them.

Where in the study does it mention that the breakdown of aspartame is linked to depression? The "conclusion" from the thread you posted spoke of diet soda and depression being linked. Not to mention that the study spoke of no conclusion and that other studies need to be conducted (even after studying it for 10 years). I read it just fine.

A.C.E. Certified Personal and Group Fitness Trainer
IDEA Fitness member
Kickboxing Certified Instructor
Been in fitness for 28+ years and have studied kinesiology and nutrition