2.1-Digestive & Endocrine Systems - part 2 Flashcards
(36 cards)
What is leptin’s primary function?
Leptin is a satiety hormone released by adipose tissue that regulates energy balance by inhibiting hunger.
What happens when a person becomes leptin resistant?
In leptin resistance, the body produces enough leptin, but the brain doesn’t recognize it, leading to persistent hunger and difficulty losing weight.
How does extreme dieting affect thyroid hormones?
Extreme dieting or nutrient deficiencies (like iodine) can lower thyroid hormone production, slowing metabolism and making fat loss harder.
What is the relationship between cortisol and fat metabolism?
Cortisol promotes the breakdown of fat during short-term stress. Chronic high cortisol levels, however, can lead to fat retention, particularly in the abdominal area.
What role does testosterone play in fat loss?
Testosterone contributes to muscle mass maintenance, which can indirectly increase energy expenditure. However, its direct effect on fat loss is minimal within natural levels.
How can you optimize natural testosterone levels?
To optimize testosterone levels, focus on stress management, avoiding overtraining, and eating enough dietary fat.
What is the ‘Leptin Diet,’ and why is it misleading?
The ‘Leptin Diet’ is marketed as a method to balance leptin, but it’s simply a calorie-controlled diet with no direct impact on leptin levels.
What is the primary method for improving insulin sensitivity?
The most effective method for improving insulin sensitivity is through healthy behaviors such as regular exercise, balanced nutrition, and weight management.
How can stress affect fat loss efforts?
Chronic stress leads to sustained high cortisol levels, which may hinder fat loss and promote fat storage, especially around the abdomen.
How should you approach clients with thyroid issues who are struggling with weight loss?
If thyroid issues are properly managed by a doctor and thyroid hormone levels are normal, treat the client as you would any other, focusing on a calorie deficit for fat loss.
What’s the most effective way to support fat loss for clients?
The most effective approach to fat loss is supporting clients in practicing healthy behaviors like maintaining a balanced diet, regular exercise, and stress management.
How do thyroid hormones (T3 and T4) influence metabolism?
Thyroid hormones regulate metabolic rate; low levels can slow metabolism, making fat loss more difficult.
What is leptin’s role in body fat regulation?
Leptin regulates body fat by signaling the brain to suppress hunger when fat stores are sufficient and increase hunger when fat stores are low.
What should a nutritionist do when a client presents with hormone-related concerns?
A nutritionist should refer clients to a healthcare provider for proper diagnosis and treatment, as they are not qualified to diagnose or treat hormonal imbalances.
How do thyroid hormones contribute to fat loss?
Thyroid hormones (T3 and T4) regulate metabolism, and adequate thyroid function supports fat loss by maintaining an efficient metabolism.
Why is it important for nutritionists to focus on behavior change rather than manipulating hormones directly?
Nutritionists should focus on helping clients adopt healthy behaviors (e.g., balanced diet, exercise) that naturally support hormonal balance and fat loss rather than trying to manipulate hormones directly.
What is the effect of hypothyroidism on fat loss?
Hypothyroidism results in a slowed metabolism, making fat loss more difficult and potentially leading to weight gain.
How can high cortisol levels affect fat storage?
Chronic high cortisol levels can increase fat storage, especially around the abdominal area, and hinder fat loss efforts.
What effect does growth hormone have on the body?
Cell production and regeneration
What is the endocrine system?
A collection of glands that produce hormones
What does the endocrine system control?
A. Sleep
B. Mood
C. Growth
D. Reproduction
E. All of the above ✔️
F. None of the above
Sleep, Mood, Growth & Reproduction
What is a negative feedback loop?
A regulatory mechanism in which a stimulus causes an opposite output in order to maintain homeostasis.
True or False? Sleep stimulates the release of growth hormone.
True
True or false? The adrenocorticotrophic hormone stimulates the release of testosterone.
False
