milkywaymercy
New member
This is copy and pasted from summarythe provided by Examine.com and I thought I'd share as it's pretty interesting!
https://www.mdpi.com/1660-4601/20/6/5187/htm
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Quick Summary
This cross-sectional study in natural vegan and omnivorous bodybuilders reported that the vegans tended to have suboptimal protein intakes during the “cutting” (contest preparation) phase.
What was studied?
The macronutrient and micronutrient intakes of omnivorous and vegan natural bodybuilders.
The macronutrients assessed were protein, carbohydrate, and fat. The micronutrients assessed were calcium, sodium, iron, zinc, vitamin D, and vitamin B12.
Who was studied?
18 bodybuilders (average age of 35) who were affiliated with the Italian World Natural Bodybuilding Federation, of whom 10 were omnivores (6 men and 4 women) and 8 were vegans (5 men and 3 women).
The vegans reported consuming a diet devoid of animal products for 2 to 11 years.
How was it studied?
In this cross-sectional study, the participants completed a food diary for 5 days during the “bulking” and “cutting” phases of their competition cycle. During the bulking phase, the goal is to increase muscle mass without adding unnecessary body fat, whereas the goal of the cutting phase is to reduce body fat without losing muscle mass. Food and dietary supplements were included in the diaries.
What were the results?
During both phases, protein intake was greater in omnivores than vegans. Protein intake decreased from the bulking to the cutting phase in vegans (from 2.23 to 1.78 grams per kilogram of body weight per day; g/kg/day), but it increased in omnivores (from 2.24 to 2.57 g/kg/day).
Both groups met the current protein recommendation for bulking (1.6–2.2 g/kg/day),[1] but the vegans fell short of the current protein recommendation for cutting (1.8–2.7 g/kg/day).[2]
With respect to micronutrient intakes, the following results were reported:
Although omnivores met the RDA for zinc on average, only half of the participants in this group successfully met the RDA.
Also, although omnivores did not meet the vitamin B12 RDA, this finding should be interpreted with caution because, as stated by the researchers, “the nutritional analysis software used to examine the diets did not have sufficient nutritional information on all foods to estimate the content of this micronutrient.”
https://www.mdpi.com/1660-4601/20/6/5187/htm
---
Quick Summary
This cross-sectional study in natural vegan and omnivorous bodybuilders reported that the vegans tended to have suboptimal protein intakes during the “cutting” (contest preparation) phase.
What was studied?
The macronutrient and micronutrient intakes of omnivorous and vegan natural bodybuilders.
The macronutrients assessed were protein, carbohydrate, and fat. The micronutrients assessed were calcium, sodium, iron, zinc, vitamin D, and vitamin B12.
Who was studied?
18 bodybuilders (average age of 35) who were affiliated with the Italian World Natural Bodybuilding Federation, of whom 10 were omnivores (6 men and 4 women) and 8 were vegans (5 men and 3 women).
The vegans reported consuming a diet devoid of animal products for 2 to 11 years.
How was it studied?
In this cross-sectional study, the participants completed a food diary for 5 days during the “bulking” and “cutting” phases of their competition cycle. During the bulking phase, the goal is to increase muscle mass without adding unnecessary body fat, whereas the goal of the cutting phase is to reduce body fat without losing muscle mass. Food and dietary supplements were included in the diaries.
What were the results?
During both phases, protein intake was greater in omnivores than vegans. Protein intake decreased from the bulking to the cutting phase in vegans (from 2.23 to 1.78 grams per kilogram of body weight per day; g/kg/day), but it increased in omnivores (from 2.24 to 2.57 g/kg/day).
Both groups met the current protein recommendation for bulking (1.6–2.2 g/kg/day),[1] but the vegans fell short of the current protein recommendation for cutting (1.8–2.7 g/kg/day).[2]
With respect to micronutrient intakes, the following results were reported:
- Neither group met the Recommended Dietary Allowance (RDA) for calcium during either phase.
- Male vegan and omnivores met the RDA for iron, but female vegans and omnivores did not.
- Omnivores met the RDA for zinc, but vegans did not.
- Vitamin D intake was highly variable, but the average intake tended to meet the RDA, except for omnivores during the cutting phase.
- Omnivores did not meet the RDA for vitamin B12 but vegans did due to daily supplementation.
Although omnivores met the RDA for zinc on average, only half of the participants in this group successfully met the RDA.
Also, although omnivores did not meet the vitamin B12 RDA, this finding should be interpreted with caution because, as stated by the researchers, “the nutritional analysis software used to examine the diets did not have sufficient nutritional information on all foods to estimate the content of this micronutrient.”